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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 |