# Performance optimization, what about max\_wal\_size?

**URL:** <https://meta.discourse.org/t/performance-optimization-what-about-max-wal-size/287422>\
**Category:** Self-hosting\
**Tags:** performance\
**Created:** [December 4, 2023, 12:39pm UTC](https://meta.discourse.org/t/performance-optimization-what-about-max-wal-size/287422 "2023-12-04T12:39:11Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Falco](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/falco/32/179432_2.png) [@Falco](https://meta.discourse.org/u/Falco)\
**Post date:** [December 4, 2023, 1:04pm UTC](https://meta.discourse.org/t/performance-optimization-what-about-max-wal-size/287422/2 "2023-12-04T13:04:16Z")

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What’s the value of running `SELECT checkpoints_timed, checkpoints_req FROM pg_stat_bgwriter;` against the DB ?

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_[View the full topic](https://meta.discourse.org/t/performance-optimization-what-about-max-wal-size/287422)._