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Extensions / Monitoring

pg_buffercache

examine the shared buffer cache

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Overview

Packagepg_buffercache
Version1.5
PostgreSQL versions14 · 15 · 16 · 17 · 18
RepositoryPostgreSQL contrib
Extension typeStandard
Requires CREATE EXTENSIONYes
Requires preloadNo
TrustedNo
Latest commit2026-05-14
Latest release2026-05-14
Catalogue updated2026-07-29

Related extensions

Required by

pg_admA PostgreSQL extension providing some administrative tools.
pgcozyPre-warming shared buffers according to previous pg_buffercache snapshots for PostgreSQL.

See also

pgfincoreexamine and manage the os buffer cache
pgcozyPre-warming shared buffers according to previous pg_buffercache snapshots for PostgreSQL.
pg_prewarmprewarm relation data
pg_cooldownremove buffered pages for specific relations
toastinfoshow details on toasted datums
pagevisVisualise database pages in ascii code
pageinspectinspect the contents of database pages at a low level
pg_freespacemapexamine the free space map (FSM)
pg_visibilityexamine the visibility map (VM) and page-level visibility info
pgstattupleshow tuple-level statistics