GLOBAL_STAT_SESSION_CU
GLOBAL_STAT_SESSION_CU is used to query the CU hit rate of running sessions on each node in openGauss. The data about a session is cleared when you exit this session or restart openGauss.
Table 1 GLOBAL_STAT_SESSION_CU columns
Name
|
Type
|
Description
|
|---|
mem_hit
|
integer
|
Number of memory hits
|
hdd_sync_read
|
integer
|
Number of synchronous hard disk reads
|
hdd_asyn_read
|
integer
|
Number of asynchronous hard disk reads
|