# Copyright (c) 2020 Huawei Technologies Co., Ltd.
# A-Tune is licensed under the Mulan PSL v2.
# You can use this software according to the terms and conditions of the Mulan PSL v2.
# You may obtain a copy of Mulan PSL v2 at:
#     http://license.coscl.org.cn/MulanPSL2
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
# PURPOSE.
# See the Mulan PSL v2 for more details.
# Create: 2020-06-10
#
# mongodb 2p sysbench A-Tune configuration
#
[main]
include = default-default

[kernel_config]
#TODO CONFIG

[bios]
#TODO CONFIG

[bootloader.grub2]
#TODO CONFIG

[sysfs]
block/{disk}/queue/read_ahead_kb = 4096
kernel/mm/transparent_hugepage/defrag = never
kernel/mm/transparent_hugepage/enabled = never

[systemctl]
sysmonitor = stop
irqbalance = stop

[sysctl]
vm.dirty_ratio = 40
vm.dirty_background_ratio = 20
vm.dirty_writeback_centisecs = 800
vm.dirty_expire_centisecs = 3000
fs.file-max = 1000000
fs.nr_open = 2000000

[script]
prefetch = off

[ulimit]
{user}.hard.nofile = 102400
{user}.soft.nofile = 102400

[schedule_policy]
#TODO CONFIG

[check]
#TODO CONFIG

[tip]
use xfs and enable noatime or nodirname to prevent the inode access records from being updated = filesystem