GLOBAL_STAT_DB_CU

GLOBAL_STAT_DB_CU queries CU hits in each database in GaussDB. You can clear it using pg_stat_reset().

**Table 1** GLOBAL_STAT_DB_CU columns
Name	Type	Description
node_name1	text	Node name.
db_name	text	Database name.
mem_hit	bigint	Number of memory hits.
hdd_sync_read	bigint	Number of synchronous hard disk reads.
hdd_asyn_read	bigint	Number of asynchronous hard disk reads.

Parent topic: Cache/IO

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