Commit Graph

20 Commits

Author SHA1 Message Date
Erik Johnston 9a0d783c11 Add comments 2018-03-19 11:35:53 +00:00
Erik Johnston 7c7706f42b Fix bug where state cache used lots of memory
The state cache bases its size on the sum of the size of entries. The
size of the entry is calculated once on insertion, so it is important
that the size of entries does not change.

The DictionaryCache modified the entries size, which caused the state
cache to incorrectly think it was smaller than it actually was.
2018-03-15 15:46:54 +00:00
Richard van der Hoff bc496df192 report metrics on number of cache evictions 2018-02-05 15:34:01 +00:00
Erik Johnston c430111d0e Update LruCache size estimate on clear 2017-01-18 14:55:23 +00:00
Erik Johnston 1ccd5676e3 Remove needless call to evict() 2017-01-17 11:42:26 +00:00
Erik Johnston f85b6ca494 Speed up cache size calculation
Instead of calculating the size of the cache repeatedly, which can take
a long time now that it can use a callback, instead cache the size and
update that on insertion and deletion.

This requires changing the cache descriptors to have two caches, one for
pending deferreds and the other for the actual values. There's no reason
to evict from the pending deferreds as they won't take up any more
memory.
2017-01-17 11:18:13 +00:00
Erik Johnston 2fae34bd2c Optionally measure size of cache by sum of length of values 2017-01-13 17:46:17 +00:00
Erik Johnston 45fd2c8942 Ensure invalidation list does not grow unboundedly 2016-08-19 16:09:16 +01:00
Erik Johnston 4161ff2fc4 Add concept of cache contexts 2016-08-19 14:17:07 +01:00
Erik Johnston c4a8cbd15a Make LruCache use a dedicated _Node class 2016-03-22 16:06:21 +00:00
Erik Johnston c046630c33 Remove spurious self.size 2016-01-29 11:17:54 +00:00
Erik Johnston 766526e114 Make TreeCache keep track of its own size. 2016-01-29 10:11:21 +00:00
Erik Johnston 50e18938a9 Reset size on clear 2016-01-29 10:00:45 +00:00
David Baker 7cd418d38e Don't add the member functiopn if we're not using treecache 2016-01-22 13:40:37 +00:00
David Baker cd80019eec docs 2016-01-22 12:21:13 +00:00
David Baker d552861346 Revert all the bits changing keys of eeverything that used LRUCaches to tuples 2016-01-22 12:18:14 +00:00
David Baker 10f76dc5da Make LRU cache not default to treecache & add options to use it 2016-01-22 12:10:33 +00:00
David Baker f1f8122120 Change LRUCache to be tree-based so we can delete subtrees. 2016-01-21 19:16:25 +00:00
Matthew Hodgson 6c28ac260c copyrights 2016-01-07 04:26:29 +00:00
Erik Johnston 2df8dd9b37 Move all the caches into their own package, synapse.util.caches 2015-08-11 18:00:59 +01:00