synapse/changelog.d/9902.feature at 7967b36efe6a033f46cd882d0b31a8c3eb18631c - tileradotorg/synapse - tilera Git

tileradotorg/synapse

forked from MirrorHub/synapse

Erik Johnston 1fb9a2d0bf

Limit how often GC happens by time. (#9902 )

Synapse can be quite memory intensive, and unless care is taken to tune
the GC thresholds it can end up thrashing, causing noticable performance
problems for large servers. We fix this by limiting how often we GC a
given generation, regardless of current counts/thresholds.

This does not help with the reverse problem where the thresholds are set
too high, but that should only happen in situations where they've been
manually configured.

Adds a `gc_min_seconds_between` config option to override the defaults.

Fixes #9890.

2021-05-05 16:53:45 +01:00

1 line

143 B

Gherkin

Raw Blame History

Add limits to how often Synapse will GC, ensuring that large servers do not end up GC thrashing if `gc_thresholds` has not been correctly set.