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
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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 the database. This data about a session is cleared when you exit this session or restart the database.

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
Parent topic: Cache/IO