Help Center/ GaussDB/ Developer Guide(Centralized_V2.0-2.x)/ Schemas/ DBE_PERF Schema/ Cache/IO/ GLOBAL_STAT_SESSION_CU
Updated on 2025-08-19 GMT+08:00
GLOBAL_STAT_SESSION_CU
GLOBAL_STAT_SESSION_CU is used to query the CU hit rate of running sessions on each node in the database. This data about a session is cleared when you exit this session or restart the database.
| 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 |
Parent topic: Cache/IO
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