Wiki / Statistics & Metrics / pg_stat_checkpointer
pg_stat_checkpointer.sync_time
Total amount of time that has been spent in the portion of processing checkpoints and restartpoints where files are synchronized to disk, in milliseconds
Reading PostgreSQL 18.6.
Description
Total amount of time that has been spent in the portion of processing checkpoints and restartpoints where files are synchronized to disk, in milliseconds
- View
- pg_stat_checkpointer
- Field
- sync_time
- SQL type
- double precision
- Units named in the field definition
- milliseconds
- Reset observation
- Time at which these statistics were last reset
Usage
SELECT sync_time FROM pg_catalog.pg_stat_checkpointer;View semantics
The pg_stat_checkpointer view will always have a single row, containing data about the checkpointer process of the cluster.
Collection and reset context
Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name.
Inspect this field
Example query; no execution result or measured value is asserted.
SELECT sync_time FROM pg_catalog.pg_stat_checkpointer;Related entries
Documentation and source
Source build
- Version
- 18.6
- Build
- https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2
- Source fingerprint
555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f
Compare versions
PostgreSQL 17 → 18: unchanged.
Compares recorded interfaces and attributes. Source fingerprints and build metadata are excluded; an absent sample is not proof of the introduction or removal release.
Related entries
pg_stat_checkpointer.buffers_writtenpg_stat_checkpointer.num_donepg_stat_checkpointer.num_requestedpg_stat_checkpointer.num_timedpg_stat_checkpointer.restartpoints_donepg_stat_checkpointer.restartpoints_reqpg_stat_checkpointer.restartpoints_timedpg_stat_checkpointer.slru_writtenpg_stat_checkpointer.stats_resetpg_stat_checkpointer.write_time
Export JSON · Back to Statistics & Metrics · Recorded in PostgreSQL 17 through 20; the first sample is not necessarily its introduction.