GGreg Kroah-Hartmanperf bench: Fix perf bench syscall loop count
| 文件 | 最后提交记录 | 最后更新时间 |
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perf bench: Make bench its own library Make the benchmark code into a library so it may be linked against things like the python module to avoid compiling code twice. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: James Clark <james.clark@arm.com> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Kees Cook <keescook@chromium.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Nick Terrell <terrelln@fb.com> Cc: Gary Guo <gary@garyguo.net> Cc: Alex Gaynor <alex.gaynor@gmail.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Wedson Almeida Filho <wedsonaf@gmail.com> Cc: Ze Gao <zegao2021@gmail.com> Cc: Alice Ryhl <aliceryhl@google.com> Cc: Andrei Vagin <avagin@google.com> Cc: Yicong Yang <yangyicong@hisilicon.com> Cc: Jonathan Cameron <jonathan.cameron@huawei.com> Cc: Guo Ren <guoren@kernel.org> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Leo Yan <leo.yan@linux.dev> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: John Garry <john.g.garry@oracle.com> Cc: Benno Lossin <benno.lossin@proton.me> Cc: Björn Roy Baron <bjorn3_gh@protonmail.com> Cc: Andreas Hindborg <a.hindborg@samsung.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240625214117.953777-6-irogers@google.com | 2 年前 | |
perf bench uprobe: Add uretprobe variant of uprobe benchmarks Name benchmarks with _ret at the end to avoid creating a new set of benchmarks. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andrei Vagin <avagin@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Kees Kook <keescook@chromium.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240406040911.1603801-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 2 年前 | |
perf bench breakpoint: Skip run if no breakpoints available Based on commit 7d54a4acd8c1de3e ("perf test: Skip watchpoint tests if no watchpoints available"), hardware breakpoints are not available for power9 platform and because of that 'perf bench breakpoint' run fails on power9 platform. Add code to check for the return value of perf_event_open() in the breakpoint run and skip the 'perf bench breakpoint' run, if hardware breakpoints are not available. Result on power9 system before patch changes: [command]# perf bench breakpoint thread perf_event_open: No such device Result on power9 system after patch changes: [command]# ./perf bench breakpoint thread Skipping perf bench breakpoint thread: No hardware support Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com> Signed-off-by: Kajol Jain <kjain@linux.ibm.com> Acked-by: Naveen N Rao <naveen@kernel.org> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Disha Goel <disgoel@linux.ibm.com> Cc: Ian Rogers <irogers@google.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20230823075103.190565-1-kjain@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 2 年前 | |
tools/perf: Fix perf bench epoll to enable the run when some CPU's are offline Perf bench epoll fails as below when attempted to run on on a powerpc system: ./perf bench epoll wait Running 'epoll/wait' benchmark: Run summary [PID 627653]: 79 threads monitoring on 64 file-descriptors for 8 secs. perf: pthread_create: No such file or directory In the setup where this perf bench was ran, difference was that partition had 640 CPU's, but not all CPUs were online. 80 CPUs were online. While creating threads and using epoll_wait , code sets the affinity using cpumask. The cpumask size used is 80 which is picked from "nrcpus = perf_cpu_map__nr(cpu)". Here the benchmark reports fail while setting affinity for cpu number which is greater than 80 or higher, because it attempts to set a bit position which is not allocated on the cpumask. Fix this by changing the size of cpumask to number of possible cpus and not the number of online cpus. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Tested-by: Disha Goel <disgoel@linux.ibm.com> Cc: akanksha@linux.ibm.com Cc: kjain@linux.ibm.com Cc: maddy@linux.ibm.com Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240607044354.82225-2-atrajeev@linux.vnet.ibm.com | 2 年前 | |
perf bench: Fix undefined behavior in cmpworker() commit 62892e77b8a64b9dc0e1da75980aa145347b6820 upstream. The comparison function cmpworker() violates the C standard's requirements for qsort() comparison functions, which mandate symmetry and transitivity: Symmetry: If x < y, then y > x. Transitivity: If x < y and y < z, then x < z. In its current implementation, cmpworker() incorrectly returns 0 when w1->tid < w2->tid, which breaks both symmetry and transitivity. This violation causes undefined behavior, potentially leading to issues such as memory corruption in glibc [1]. Fix the issue by returning -1 when w1->tid < w2->tid, ensuring compliance with the C standard and preventing undefined behavior. Link: https://www.qualys.com/2024/01/30/qsort.txt [1] Fixes: 121dd9ea0116 ("perf bench: Add epoll parallel epoll_wait benchmark") Cc: stable@vger.kernel.org Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Reviewed-by: James Clark <james.clark@linaro.org> Link: https://lore.kernel.org/r/20250116110842.4087530-1-visitorckw@gmail.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 1 年前 | |
perf evlist: Rename cpus to user_requested_cpus evlist contains cpus and all_cpus. all_cpus is the union of the cpu maps of all evsels. For non-task targets, cpus is set to be cpus requested from the command line, defaulting to all online cpus if no cpus are specified. For an uncore event, all_cpus may be just CPU 0 or every online CPU. This causes all_cpus to have fewer values than the cpus variable which is confusing given the 'all' in the name. To try to make the behavior clearer, rename cpus to user_requested_cpus and add comments on the two struct variables. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Antonov <alexander.antonov@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: German Gomez <german.gomez@arm.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Fastabend <john.fastabend@gmail.com> Cc: John Garry <john.garry@huawei.com> Cc: KP Singh <kpsingh@kernel.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Yonghong Song <yhs@fb.com> Cc: bpf@vger.kernel.org Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: netdev@vger.kernel.org Link: http://lore.kernel.org/lkml/20220328232648.2127340-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 4 年前 | |
perf bench: Avoid NDEBUG warning With NDEBUG set the asserts are compiled out. This yields "unused-but-set-variable" variables. Move these variables behind NDEBUG to avoid the warning. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/r/20230330183827.1412303-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 3 年前 | |
tools/perf: Fix perf bench futex to enable the run when some CPU's are offline Perf bench futex fails as below when attempted to run on on a powerpc system: ./perf bench futex all Running futex/hash benchmark... Run summary [PID 626307]: 80 threads, each operating on 1024 [private] futexes for 10 secs. perf: pthread_create: No such file or directory In the setup where this perf bench was ran, difference was that partition had 640 CPU's, but not all CPUs were online. 80 CPUs were online. While blocking the threads with futex_wait, code sets the affinity using cpumask. The cpumask size used is 80 which is picked from "nrcpus = perf_cpu_map__nr(cpu)". Here the benchmark reports fail while setting affinity for cpu number which is greater than 80 or higher, because it attempts to set a bit position which is not allocated on the cpumask. Fix this by changing the size of cpumask to number of possible cpus and not the number of online cpus. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Tested-by: Disha Goel <disgoel@linux.ibm.com> Cc: akanksha@linux.ibm.com Cc: kjain@linux.ibm.com Cc: maddy@linux.ibm.com Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240607044354.82225-1-atrajeev@linux.vnet.ibm.com | 2 年前 | |
tools/perf: Fix perf bench futex to enable the run when some CPU's are offline Perf bench futex fails as below when attempted to run on on a powerpc system: ./perf bench futex all Running futex/hash benchmark... Run summary [PID 626307]: 80 threads, each operating on 1024 [private] futexes for 10 secs. perf: pthread_create: No such file or directory In the setup where this perf bench was ran, difference was that partition had 640 CPU's, but not all CPUs were online. 80 CPUs were online. While blocking the threads with futex_wait, code sets the affinity using cpumask. The cpumask size used is 80 which is picked from "nrcpus = perf_cpu_map__nr(cpu)". Here the benchmark reports fail while setting affinity for cpu number which is greater than 80 or higher, because it attempts to set a bit position which is not allocated on the cpumask. Fix this by changing the size of cpumask to number of possible cpus and not the number of online cpus. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Tested-by: Disha Goel <disgoel@linux.ibm.com> Cc: akanksha@linux.ibm.com Cc: kjain@linux.ibm.com Cc: maddy@linux.ibm.com Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240607044354.82225-1-atrajeev@linux.vnet.ibm.com | 2 年前 | |
tools/perf: Fix perf bench futex to enable the run when some CPU's are offline Perf bench futex fails as below when attempted to run on on a powerpc system: ./perf bench futex all Running futex/hash benchmark... Run summary [PID 626307]: 80 threads, each operating on 1024 [private] futexes for 10 secs. perf: pthread_create: No such file or directory In the setup where this perf bench was ran, difference was that partition had 640 CPU's, but not all CPUs were online. 80 CPUs were online. While blocking the threads with futex_wait, code sets the affinity using cpumask. The cpumask size used is 80 which is picked from "nrcpus = perf_cpu_map__nr(cpu)". Here the benchmark reports fail while setting affinity for cpu number which is greater than 80 or higher, because it attempts to set a bit position which is not allocated on the cpumask. Fix this by changing the size of cpumask to number of possible cpus and not the number of online cpus. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Tested-by: Disha Goel <disgoel@linux.ibm.com> Cc: akanksha@linux.ibm.com Cc: kjain@linux.ibm.com Cc: maddy@linux.ibm.com Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240607044354.82225-1-atrajeev@linux.vnet.ibm.com | 2 年前 | |
tools/perf: Fix timing issue with parallel threads in perf bench wake-up-parallel perf bench futex fails as below and hangs intermittently when attempted to run on on a powerpc system: ./perf bench futex wake-parallel Running 'futex/wake-parallel' benchmark: Run summary [PID 88588]: blocking on 640 threads (at [private] futex 0x10464b8c), 640 threads waking up 1 at a time. [Run 1]: Avg per-thread latency (waking 1/640 threads) in 0.1309 ms (+-53.27%) [Run 2]: Avg per-thread latency (waking 1/640 threads) in 0.0120 ms (+-31.16%) [Run 3]: Avg per-thread latency (waking 1/640 threads) in 0.1474 ms (+-92.47%) [Run 4]: Avg per-thread latency (waking 1/640 threads) in 0.2883 ms (+-67.75%) [Run 5]: Avg per-thread latency (waking 1/640 threads) in 0.4108 ms (+-39.60%) [Run 6]: Avg per-thread latency (waking 1/640 threads) in 0.7843 ms (+-78.98%) perf: couldn't wakeup all tasks (0/1) perf: couldn't wakeup all tasks (0/1) perf: couldn't wakeup all tasks (0/1) perf: couldn't wakeup all tasks (0/1) perf: couldn't wakeup all tasks (0/1) perf: couldn't wakeup all tasks (0/1) In the system, where perf bench wake-up-parallel is has system configuration of 640 cpus. After debugging, this turned out to be a timing issue. The benchmark creates threads equal to number of cpus and issues a futex_wait. Then it does a usleep for .1 second before initiating futex_wake. In system configuration with more threads, the usleep time is not enough. Patch changes the usleep from 100000 to 200000 With the patch, ran multiple iterations and there were no issues further seen Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com> Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Tested-by: Disha Goel <disgoel@linux.ibm.com> Cc: akanksha@linux.ibm.com Cc: kjain@linux.ibm.com Cc: maddy@linux.ibm.com Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240607044354.82225-3-atrajeev@linux.vnet.ibm.com | 2 年前 | |
tools/perf: Fix perf bench futex to enable the run when some CPU's are offline Perf bench futex fails as below when attempted to run on on a powerpc system: ./perf bench futex all Running futex/hash benchmark... Run summary [PID 626307]: 80 threads, each operating on 1024 [private] futexes for 10 secs. perf: pthread_create: No such file or directory In the setup where this perf bench was ran, difference was that partition had 640 CPU's, but not all CPUs were online. 80 CPUs were online. While blocking the threads with futex_wait, code sets the affinity using cpumask. The cpumask size used is 80 which is picked from "nrcpus = perf_cpu_map__nr(cpu)". Here the benchmark reports fail while setting affinity for cpu number which is greater than 80 or higher, because it attempts to set a bit position which is not allocated on the cpumask. Fix this by changing the size of cpumask to number of possible cpus and not the number of online cpus. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Tested-by: Disha Goel <disgoel@linux.ibm.com> Cc: akanksha@linux.ibm.com Cc: kjain@linux.ibm.com Cc: maddy@linux.ibm.com Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240607044354.82225-1-atrajeev@linux.vnet.ibm.com | 2 年前 | |
Revert "perf bench futex: Add support for 32-bit systems with 64-bit time_t" This reverts commit c1ff12dac4657e0134c972978479b97f652711a2. This commit makes the build break on ubuntu 20.04 and other older systems and it as well has identation problems, lets revert it till we get these problems fixed. Test results: 1 78.36 almalinux:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) , clang version 11.0.0 (Red Hat 11.0.0-1.module_el8.4.0+2107+39fed697) 2 8.40 alpine:3.4 : FAIL gcc version 5.3.0 (Alpine 5.3.0) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 3 8.89 alpine:3.5 : FAIL gcc version 6.2.1 20160822 (Alpine 6.2.1) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 4 8.59 alpine:3.6 : FAIL gcc version 6.3.0 (Alpine 6.3.0) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 5 9.01 alpine:3.7 : FAIL gcc version 6.4.0 (Alpine 6.4.0) In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 6 8.70 alpine:3.8 : FAIL gcc version 6.4.0 (Alpine 6.4.0) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 7 9.70 alpine:3.9 : FAIL gcc version 8.3.0 (Alpine 8.3.0) In file included from bench/futex-wake.c:25: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake-parallel.c:31: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-hash.c:29: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 8 9.40 alpine:3.10 : FAIL gcc version 8.3.0 (Alpine 8.3.0) In file included from bench/futex-hash.c:29: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 9 9.81 alpine:3.11 : FAIL gcc version 9.3.0 (Alpine 9.3.0) In file included from bench/futex-hash.c:29: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory 16 | #include <linux/time_types.h> | ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory 16 | #include <linux/time_types.h> | ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 10 10.32 alpine:3.12 : FAIL gcc version 9.3.0 (Alpine 9.3.0) bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' 64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) | ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known 68 | struct __kernel_old_timespec ts32; | ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 11 99.82 alpine:3.13 : Ok gcc (Alpine 10.2.1_pre1) 10.2.1 20201203 , Alpine clang version 10.0.1 12 87.39 alpine:3.14 : Ok gcc (Alpine 10.3.1_git20210424) 10.3.1 20210424 , Alpine clang version 11.1.0 13 86.89 alpine:edge : Ok gcc (Alpine 10.3.1_git20210921) 10.3.1 20210921 , Alpine clang version 12.0.1 14 7.30 alt:p8 : FAIL gcc version 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. make[3]: *** [bench] Error 2 15 63.92 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1) , clang version 10.0.0 16 61.42 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 11.2.1 20210911 (ALT Sisyphus 11.2.1-alt1) , ALT Linux Team clang version 12.0.1 17 8.30 amazonlinux:1 : FAIL gcc version 7.2.1 20170915 (Red Hat 7.2.1-2) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [bench] Error 2 18 8.71 amazonlinux:2 : FAIL gcc version 7.3.1 20180712 (Red Hat 7.3.1-13) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [bench] Error 2 19 79.56 centos:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) , clang version 11.0.0 (Red Hat 11.0.0-1.module_el8.4.0+587+5187cac0) 20 82.28 centos:stream : Ok gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-3) , clang version 12.0.1 (Red Hat 12.0.1-2.module_el8.6.0+937+1cafe22c) 21 55.24 clearlinux:latest : Ok gcc (Clear Linux OS for Intel Architecture) 11.2.1 20211020 releases/gcc-11.2.0-375-g40b209e340 , clang version 11.1.0 22 7.41 debian:9 : FAIL gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 23 7.90 debian:10 : FAIL gcc version 8.3.0 (Debian 8.3.0-6) In file included from bench/futex-hash.c:29: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 24 60.32 debian:11 : Ok gcc (Debian 10.2.1-6) 10.2.1 20210110 , Debian clang version 11.0.1-2 25 59.42 debian:experimental : Ok gcc (Debian 11.2.0-10) 11.2.0 , Debian clang version 11.1.0-4 26 23.76 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 11.2.0-9) 11.2.0 27 19.25 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110 28 21.25 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 10.2.1-6) 10.2.1 20210110 29 21.88 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 11.2.0-9) 11.2.0 30 8.20 fedora:22 : FAIL gcc version 5.3.1 20160406 (Red Hat 5.3.1-6) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 31 8.20 fedora:23 : FAIL gcc version 5.3.1 20160406 (Red Hat 5.3.1-6) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 32 8.59 fedora:24 : FAIL gcc version 6.3.1 20161221 (Red Hat 6.3.1-1) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 33 6.60 fedora:24-x-ARC-uClibc : FAIL gcc version 7.1.1 20170710 (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 34 8.59 fedora:25 : FAIL gcc version 6.4.1 20170727 (Red Hat 6.4.1-1) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 35 14.61 fedora:26 : FAIL gcc version 7.3.1 20180130 (Red Hat 7.3.1-2) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 36 8.79 fedora:27 : FAIL gcc version 7.3.1 20180712 (Red Hat 7.3.1-6) (GCC) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 37 15.12 fedora:28 : FAIL gcc version 8.3.1 20190223 (Red Hat 8.3.1-2) (GCC) In file included from bench/futex-wake.c:25: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-hash.c:29: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake-parallel.c:31: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 38 9.60 fedora:29 : FAIL gcc version 8.3.1 20190223 (Red Hat 8.3.1-2) (GCC) bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known struct __kernel_old_timespec ts32; ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 39 101.90 fedora:30 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2) , clang version 8.0.0 (Fedora 8.0.0-3.fc30) 40 99.30 fedora:31 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2) , clang version 9.0.1 (Fedora 9.0.1-4.fc31) 41 82.46 fedora:32 : Ok gcc (GCC) 10.3.1 20210422 (Red Hat 10.3.1-1) , clang version 10.0.1 (Fedora 10.0.1-3.fc32) 42 81.32 fedora:33 : Ok gcc (GCC) 10.3.1 20210422 (Red Hat 10.3.1-1) , clang version 11.0.0 (Fedora 11.0.0-3.fc33) 43 84.07 fedora:34 : Ok gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1) , clang version 12.0.1 (Fedora 12.0.1-1.fc34) 44 7.09 fedora:34-x-ARC-glibc : FAIL gcc version 8.3.1 20190225 (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) In file included from bench/futex-hash.c:29: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake-parallel.c:31: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 45 6.29 fedora:34-x-ARC-uClibc : FAIL gcc version 8.3.1 20190225 (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) In file included from bench/futex-hash.c:29: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 46 74.74 fedora:35 : Ok gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1) , clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35) 47 73.13 fedora:rawhide : Ok gcc (GCC) 11.2.1 20211019 (Red Hat 11.2.1-6) , clang version 13.0.0 (Fedora 13.0.0-4.fc36) 48 28.17 gentoo-stage3:latest : Ok gcc (Gentoo 11.2.0 p1) 11.2.0 49 9.10 mageia:6 : FAIL gcc version 5.5.0 (Mageia 5.5.0-1.mga6) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-wake-parallel.c:31:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 50 38.60 mageia:7 : FAIL clang version 8.0.0 (Mageia 8.0.0-1.mga7) yychar = yylex (&yylval, &yylloc, scanner); ^ #define yylex parse_events_lex ^ 1 error generated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: util] Error 2 51 6.18 openmandriva:cooker : FAIL gcc version 11.2.0 20210728 (OpenMandriva) (GCC) In file included from builtin-bench.c:22: bench/bench.h:66:19: error: conflicting types for 'pthread_attr_setaffinity_np'; have 'int(pthread_attr_t *, size_t, cpu_set_t *)' {aka 'int(pthread_attr_t *, long unsigned int, cpu_set_t *)'} 66 | static inline int pthread_attr_setaffinity_np(pthread_attr_t *attr __maybe_unused, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from bench/bench.h:64, from builtin-bench.c:22: /usr/include/pthread.h:394:12: note: previous declaration of 'pthread_attr_setaffinity_np' with type 'int(pthread_attr_t *, size_t, const cpu_set_t *)' {aka 'int(pthread_attr_t *, long unsigned int, const cpu_set_t *)'} 394 | extern int pthread_attr_setaffinity_np (pthread_attr_t *__attr, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ file: Compiled magic version [540] does not match with shared library magic version [539] ld: warning: -r and --gc-sections may not be used together, disabling --gc-sections ld: warning: -r and --icf may not be used together, disabling --icf ld: warning: -r and --gc-sections may not be used together, disabling --gc-sections ld: warning: -r and --icf may not be used together, disabling --icf file: Compiled magic version [540] does not match with shared library magic version [539] file: Compiled magic version [540] does not match with shared library magic version [539] ld: warning: -r and --gc-sections may not be used together, disabling --gc-sections ld: warning: -r and --icf may not be used together, disabling --icf 52 12.51 opensuse:15.0 : FAIL gcc version 7.4.1 20190905 [gcc-7-branch revision 275407] (SUSE Linux) Makefile.config:999: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev update-alternatives: error: no alternatives for java update-alternatives: error: no alternatives for java Makefile.config:1043: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... libbfd: [ OFF ] ... libbfd-buildid: [ OFF ] ... libcap: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ] ... libaio: [ on ] ... libzstd: [ on ] ... disassembler-four-args: [ on ] PERF_VERSION = 5.15.g875eaa399042 GEN perf-archive GEN perf-with-kcore GEN perf-iostat -- In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake-parallel.c:31:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-requeue.c:26:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 53 12.41 opensuse:15.1 : FAIL gcc version 7.5.0 (SUSE Linux) Makefile.config:999: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev update-alternatives: error: no alternatives for java update-alternatives: error: no alternatives for java Makefile.config:1043: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... libbfd: [ OFF ] ... libbfd-buildid: [ OFF ] ... libcap: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ] ... libaio: [ on ] ... libzstd: [ on ] ... disassembler-four-args: [ on ] PERF_VERSION = 5.15.g875eaa399042 GEN perf-archive GEN perf-with-kcore GEN perf-iostat -- In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake-parallel.c:31:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-requeue.c:26:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 54 12.20 opensuse:15.2 : FAIL gcc version 7.5.0 (SUSE Linux) Makefile.config:999: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev update-alternatives: error: no alternatives for java update-alternatives: error: no alternatives for java Makefile.config:1043: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... libbfd: [ OFF ] ... libbfd-buildid: [ OFF ] ... libcap: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ] ... libaio: [ on ] ... libzstd: [ on ] ... disassembler-four-args: [ on ] PERF_VERSION = 5.15.g875eaa399042 GEN perf-archive GEN perf-with-kcore GEN perf-iostat -- bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known struct __kernel_old_timespec ts32; ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors In file included from bench/futex-wake.c:25:0: bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known struct __kernel_old_timespec ts32; ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors In file included from bench/futex-wake-parallel.c:31:0: bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known struct __kernel_old_timespec ts32; ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 55 12.30 opensuse:15.3 : FAIL gcc version 7.5.0 (SUSE Linux) Makefile.config:999: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev update-alternatives: error: no alternatives for java update-alternatives: error: no alternatives for java Makefile.config:1043: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... libbfd: [ OFF ] ... libbfd-buildid: [ OFF ] ... libcap: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ] ... libaio: [ on ] ... libzstd: [ on ] ... disassembler-four-args: [ on ] PERF_VERSION = 5.15.g875eaa399042 GEN perf-archive GEN perf-with-kcore GEN perf-iostat -- bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known struct __kernel_old_timespec ts32; ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] In file included from bench/futex-hash.c:29:0: bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known struct __kernel_old_timespec ts32; ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors cc1: all warnings being treated as errors In file included from bench/futex-wake-parallel.c:31:0: bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known struct __kernel_old_timespec ts32; ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 56 92.79 opensuse:tumbleweed : Ok gcc (SUSE Linux) 11.2.1 20210816 [revision 056e324ce46a7924b5cf10f61010cf9dd2ca10e9] , clang version 13.0.0 57 78.85 oraclelinux:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1.0.4) , clang version 11.0.0 (Red Hat 11.0.0-1.0.1.module+el8.4.0+20046+39fed697) 58 78.47 rockylinux:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) , clang version 11.0.0 (Red Hat 11.0.0-1.module+el8.4.0+412+05cf643f) 59 8.32 ubuntu:16.04 : FAIL gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 60 7.19 ubuntu:16.04-x-arm : FAIL gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 61 18.14 ubuntu:16.04-x-arm64 : FAIL gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 62 6.99 ubuntu:16.04-x-powerpc : FAIL gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.9) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 63 7.29 ubuntu:16.04-x-powerpc64 : FAIL gcc version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-wake-parallel.c:31:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-requeue.c:26:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-lock-pi.c:19:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 64 7.29 ubuntu:16.04-x-powerpc64el : FAIL gcc version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 65 6.59 ubuntu:16.04-x-s390 : FAIL gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.9) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. In file included from bench/futex-wake-parallel.c:31:0: bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 66 9.00 ubuntu:18.04 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 67 7.49 ubuntu:18.04-x-arm : FAIL gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 68 7.49 ubuntu:18.04-x-arm64 : FAIL gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 69 6.09 ubuntu:18.04-x-m68k : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake-parallel.c:31:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 70 7.40 ubuntu:18.04-x-powerpc : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 71 8.00 ubuntu:18.04-x-powerpc64 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 72 7.99 ubuntu:18.04-x-powerpc64el : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 73 6.89 ubuntu:18.04-x-riscv64 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 74 6.69 ubuntu:18.04-x-s390 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 75 7.29 ubuntu:18.04-x-sh4 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 76 6.69 ubuntu:18.04-x-sparc64 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) In file included from bench/futex-hash.c:29:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. In file included from bench/futex-wake.c:25:0: bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory #include <linux/time_types.h> ^~~~~~~~~~~~~~~~~~~~ compilation terminated. /git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed make[3]: *** [bench] Error 2 77 9.59 ubuntu:20.04 : FAIL gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04) bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' 64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) | ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known 68 | struct __kernel_old_timespec ts32; | ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors In file included from bench/futex-wake.c:25: bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' 64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) | ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known 68 | struct __kernel_old_timespec ts32; | ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors In file included from bench/futex-wake-parallel.c:31: bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' 64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) | ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known 68 | struct __kernel_old_timespec ts32; | ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 78 8.29 ubuntu:20.04-x-powerpc64el : FAIL gcc version 10.3.0 (Ubuntu 10.3.0-1ubuntu1~20.04) bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' 64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) | ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known 68 | struct __kernel_old_timespec ts32; | ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors In file included from bench/futex-wake.c:25: bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' 64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) | ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known 68 | struct __kernel_old_timespec ts32; | ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] In file included from bench/futex-requeue.c:26: bench/futex.h: In function 'futex_syscall': bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' 64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) | ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known 68 | struct __kernel_old_timespec ts32; | ^~~~ In file included from bench/futex-wake-parallel.c:31: bench/futex.h: In function 'futex_syscall': bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec' 64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec)) | ^~~~~~ bench/futex.h:68:32: error: storage size of 'ts32' isn't known 68 | struct __kernel_old_timespec ts32; | ^~~~ bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable] cc1: all warnings being treated as errors cc1: all warnings being treated as errors cc1: all warnings being treated as errors make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2 79 65.92 ubuntu:20.10 : Ok gcc (Ubuntu 10.3.0-1ubuntu1~20.10) 10.3.0 , Ubuntu clang version 11.0.0-2 80 65.91 ubuntu:21.04 : Ok gcc (Ubuntu 10.3.0-1ubuntu1) 10.3.0 , Ubuntu clang version 12.0.0-3ubuntu1~21.04.2 81 68.12 ubuntu:21.10 : Ok gcc (Ubuntu 11.2.0-7ubuntu2) 11.2.0 , Ubuntu clang version 13.0.0-2 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 4 年前 | |
perf bench internals inject-build-id: Fix trap divide when collecting just one DSO 'perf bench internals inject-build-id' suffers from the following error when only one DSO is collected. # perf bench internals inject-build-id -v Collected 1 DSOs traps: internals-injec[2305] trap divide error ip:557566ba6394 sp:7ffd4de97fe0 error:0 in perf[557566b2a000+23d000] Build-id injection benchmark Iteration #1 Floating point exception This patch removes the unnecessary minus one from the divisor which also corrects the randomization range. Signed-off-by: He Zhe <zhe.he@windriver.com> Fixes: 0bf02a0d80427f26 ("perf bench: Add build-id injection benchmark") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240507065026.2652929-1-zhe.he@windriver.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 2 年前 | |
perf bench: Add kallsyms parsing Add a benchmark for kallsyms parsing. Example output: Running 'internals/kallsyms-parse' benchmark: Average kallsyms__parse took: 103.971 ms (+- 0.121 ms) Committer testing: Test Machine: AMD Ryzen 5 3600X 6-Core Processor [root@five ~]# perf bench internals kallsyms-parse # Running 'internals/kallsyms-parse' benchmark: Average kallsyms__parse took: 79.692 ms (+- 0.101 ms) [root@five ~]# perf stat -r5 perf bench internals kallsyms-parse # Running 'internals/kallsyms-parse' benchmark: Average kallsyms__parse took: 80.563 ms (+- 0.079 ms) # Running 'internals/kallsyms-parse' benchmark: Average kallsyms__parse took: 81.046 ms (+- 0.155 ms) # Running 'internals/kallsyms-parse' benchmark: Average kallsyms__parse took: 80.874 ms (+- 0.104 ms) # Running 'internals/kallsyms-parse' benchmark: Average kallsyms__parse took: 81.173 ms (+- 0.133 ms) # Running 'internals/kallsyms-parse' benchmark: Average kallsyms__parse took: 81.169 ms (+- 0.074 ms) Performance counter stats for 'perf bench internals kallsyms-parse' (5 runs): 8,093.54 msec task-clock # 0.999 CPUs utilized ( +- 0.14% ) 3,165 context-switches # 0.391 K/sec ( +- 0.18% ) 10 cpu-migrations # 0.001 K/sec ( +- 23.13% ) 744 page-faults # 0.092 K/sec ( +- 0.21% ) 34,551,564,954 cycles # 4.269 GHz ( +- 0.05% ) (83.33%) 1,160,584,308 stalled-cycles-frontend # 3.36% frontend cycles idle ( +- 1.60% ) (83.33%) 14,974,323,985 stalled-cycles-backend # 43.34% backend cycles idle ( +- 0.24% ) (83.33%) 58,712,905,705 instructions # 1.70 insn per cycle # 0.26 stalled cycles per insn ( +- 0.01% ) (83.34%) 14,136,433,778 branches # 1746.632 M/sec ( +- 0.01% ) (83.33%) 141,943,217 branch-misses # 1.00% of all branches ( +- 0.04% ) (83.33%) 8.1040 +- 0.0115 seconds time elapsed ( +- 0.14% ) [root@five ~]# Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lore.kernel.org/lkml/20200501221315.54715-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 6 年前 | |
perf bench mem: Always memset source before memcpy For memcpy, the source pages are memset to zero only when --cycles is used. This leads to wildly different results with or without --cycles, since all sources pages are likely to be mapped to the same zero page without explicit writes. Before this fix: $ export cmd="./perf stat -e LLC-loads -- ./perf bench \ mem memcpy -s 1024MB -l 100 -f default" $ $cmd 2,935,826 LLC-loads 3.821677452 seconds time elapsed $ $cmd --cycles 217,533,436 LLC-loads 8.616725985 seconds time elapsed After this fix: $ $cmd 214,459,686 LLC-loads 8.674301124 seconds time elapsed $ $cmd --cycles 214,758,651 LLC-loads 8.644480006 seconds time elapsed Fixes: 47b5757bac03c338 ("perf bench mem: Move boilerplate memory allocation to the infrastructure") Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: kernel@axis.com Link: http://lore.kernel.org/lkml/20200810133404.30829-1-vincent.whitchurch@axis.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 5 年前 | |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 8 年前 | |
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench' This is to get the changes from: 68674f94ffc9dddc ("x86: don't use REP_GOOD or ERMS for small memory copies") 20f3337d350c4e1b ("x86: don't use REP_GOOD or ERMS for small memory clearing") This also make the 'perf bench mem' files stop referring to the erms versions that gone away with the above patches. That addresses these perf tools build warning: Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S' diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S' diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 3 年前 | |
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench' This is to get the changes from: 68674f94ffc9dddc ("x86: don't use REP_GOOD or ERMS for small memory copies") 20f3337d350c4e1b ("x86: don't use REP_GOOD or ERMS for small memory clearing") This also make the 'perf bench mem' files stop referring to the erms versions that gone away with the above patches. That addresses these perf tools build warning: Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S' diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S' diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 3 年前 | |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 8 年前 | |
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench' This is to get the changes from: 68674f94ffc9dddc ("x86: don't use REP_GOOD or ERMS for small memory copies") 20f3337d350c4e1b ("x86: don't use REP_GOOD or ERMS for small memory clearing") This also make the 'perf bench mem' files stop referring to the erms versions that gone away with the above patches. That addresses these perf tools build warning: Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S' diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S' diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 3 年前 | |
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench' This is to get the changes from: 68674f94ffc9dddc ("x86: don't use REP_GOOD or ERMS for small memory copies") 20f3337d350c4e1b ("x86: don't use REP_GOOD or ERMS for small memory clearing") This also make the 'perf bench mem' files stop referring to the erms versions that gone away with the above patches. That addresses these perf tools build warning: Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S' diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S' diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 3 年前 | |
perf bench numa: Fix type of loop iterator in do_work, it should be 'long' 'j' is of type int and start/end are of type 'long'. Thus 'j' might become negative and cause segfault in access_data(). Fix it by using 'long' for 'j' as well. Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Andreas Herrmann <aherrmann@suse.de> Link: https://lore.kernel.org/r/20230330074202.14052-1-aherrmann@suse.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 3 年前 | |
perf pmu: Abstract alias/event struct In order to be able to lazily compute aliases/events for a PMU, move the struct perf_pmu_alias into pmu.c. Add perf_pmu__find_event and perf_pmu__for_each_event that take a callback that is called for the found event or for each event. The layout of struct pmu and the event/alias list is unchanged but the API is altered so that aliases are no longer directly accessed, allowing for later changes. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 2 年前 | |
perf bench messaging: Kill child processes when exit abnormally in process mode When exit abnormally in process mode, customize SIGINT and SIGTERM signal handler to kill the forked child processes. Before: # perf bench sched messaging -l 1000000 -g 1 & [1] 8519 # # Running 'sched/messaging' benchmark: # pgrep sched-messaging | wc -l 41 # kill -15 8519 [1]+ Terminated perf bench sched messaging -l 1000000 -g 1 # pgrep sched-messaging | wc -l 40 After: # perf bench sched messaging -l 1000000 -g 1 & [1] 8472 # # Running 'sched/messaging' benchmark: # pgrep sched-messaging | wc -l 41 # kill -15 8472 [1]+ Exit 1 perf bench sched messaging -l 1000000 -g 1 # pgrep sched-messaging | wc -l 0 Signed-off-by: Yang Jihong <yangjihong1@huawei.com> Reviewed-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20230923093037.961232-5-yangjihong1@huawei.com [ namhyung: fix a whitespace ] Signed-off-by: Namhyung Kim <namhyung@kernel.org> | 2 年前 | |
perf bench sched pipe: Add -G/--cgroups option The -G/--cgroups option is to put sender and receiver in different cgroups in order to measure cgroup context switch overheads. Users need to make sure the cgroups exist and accessible. The following example should the effect of this change. Please don't forget taskset before the perf bench to measure cgroup switches properly. Otherwise each task would run on a different CPU and generate cgroup switches regardless of this change. # perf stat -e context-switches,cgroup-switches \ > taskset -c 0 perf bench sched pipe -l 10000 > /dev/null Performance counter stats for 'taskset -c 0 perf bench sched pipe -l 10000': 20,001 context-switches 2 cgroup-switches 0.053449651 seconds time elapsed 0.011286000 seconds user 0.041869000 seconds sys # perf stat -e context-switches,cgroup-switches \ > taskset -c 0 perf bench sched pipe -l 10000 -G AAA,BBB > /dev/null Performance counter stats for 'taskset -c 0 perf bench sched pipe -l 10000 -G AAA,BBB': 20,001 context-switches 20,001 cgroup-switches 0.052768627 seconds time elapsed 0.006284000 seconds user 0.046266000 seconds sys Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: https://lore.kernel.org/r/20231017202342.1353124-1-namhyung@kernel.org | 2 年前 | |
perf bench sched-seccomp-notify: Fix spelling mistake "synchronious" -> "synchronous" There is a spelling mistake in an option description. Fix it. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: kernel-janitors@vger.kernel.org Link: https://lore.kernel.org/r/20230630080029.15614-1-colin.i.king@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 2 年前 | |
perf tool: Constify tool pointers The tool pointer (to a struct largely of function pointers) is passed around but is unchanged except at initialization. Change parameter and variable types to be const to lower the possibilities of what could happen with a tool. Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Leo Yan <leo.yan@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Jonathan Cameron <jonathan.cameron@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Sun Haiyong <sunhaiyong@loongson.cn> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Yanteng Si <siyanteng@loongson.cn> Cc: Yicong Yang <yangyicong@hisilicon.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20240812204720.631678-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 1 年前 | |
perf bench: Fix perf bench syscall loop count [ Upstream commit 957d194163bf983da98bf7ec7e4f86caff8cd0eb ] Command 'perf bench syscall fork -l 100000' offers option -l to run for a specified number of iterations. However this option is not always observed. The number is silently limited to 10000 iterations as can be seen: Output before: # perf bench syscall fork -l 100000 # Running 'syscall/fork' benchmark: # Executed 10,000 fork() calls Total time: 23.388 [sec] 2338.809800 usecs/op 427 ops/sec # When explicitly specified with option -l or --loops, also observe higher number of iterations: Output after: # perf bench syscall fork -l 100000 # Running 'syscall/fork' benchmark: # Executed 100,000 fork() calls Total time: 716.982 [sec] 7169.829510 usecs/op 139 ops/sec # This patch fixes the issue for basic execve fork and getpgid. Fixes: ece7f7c0507c ("perf bench syscall: Add fork syscall benchmark") Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Tested-by: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Tiezhu Yang <yangtiezhu@loongson.cn> Link: https://lore.kernel.org/r/20250304092349.2618082-1-tmricht@linux.ibm.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> | 1 年前 | |
perf bench uprobe: Add uretprobe variant of uprobe benchmarks Name benchmarks with _ret at the end to avoid creating a new set of benchmarks. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andrei Vagin <avagin@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Kees Kook <keescook@chromium.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240406040911.1603801-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 2 年前 |