Technologies/PostgreSQL/blks_hit
PostgreSQLPostgreSQLMetric

blks_hit

Buffer cache hits
Dimensions:None
Available on:Native (1)DatadogDatadog (1)
Interface Metrics (2)
Native
Number of buffer hits (blocks found in cache)
Dimensions:None
DatadogDatadog
Total number of shared block cache hits per query_signature, db, and user. (DBM only)
Dimensions:None
Sources
blks_hitgithub.com
postgresql.queries.shared_blks_hitgithub.com

Technical Annotations (3)

Configuration Parameters (1)
shared_buffers
size of PostgreSQL buffer cache in memory
Technical References (2)
shared_bufferscomponentbuffer cachecomponent
Related Insights (2)
Cache hit ratio below optimal causes excessive disk I/Owarning
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Buffer cache hit ratio below 95% causes excessive disk I/Owarning
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