Commit Graph

81 Commits (f42e4c4eb9b5b84bd1da80a4f3938c1c06305364)

Author SHA1 Message Date
Richard van der Hoff c0df6bae06
Remove `keylen` from `LruCache`. (#9993)
`keylen` seems to be a thing that is frequently incorrectly set, and we don't really need it.

The only time it was used was to figure out if we had removed a subtree in `del_multi`, which we can do better by changing `TreeCache.pop` to return a different type (`TreeCacheNode`).

Commits should be independently reviewable.
2021-05-24 14:02:01 +01:00
Richard van der Hoff 5090f26b63
Minor `@cachedList` enhancements (#9975)
- use a tuple rather than a list for the iterable that is passed into the
  wrapped function, for performance

- test that we can pass an iterable and that keys are correctly deduped.
2021-05-14 11:12:36 +01:00
Jonathan de Jong 4b965c862d
Remove redundant "coding: utf-8" lines (#9786)
Part of #9744

Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now.

`Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
2021-04-14 15:34:27 +01:00
Eric Eastwood 0a00b7ff14
Update black, and run auto formatting over the codebase (#9381)
- Update black version to the latest
 - Run black auto formatting over the codebase
    - Run autoformatting according to [`docs/code_style.md
`](80d6dc9783/docs/code_style.md)
 - Update `code_style.md` docs around installing black to use the correct version
2021-02-16 22:32:34 +00:00
Richard van der Hoff cbc82aa09f
Implement and use an @lru_cache decorator (#8595)
We don't always need the full power of a DeferredCache.
2020-10-30 11:43:17 +00:00
Richard van der Hoff b28aaeb3a5
Optimise CacheDescriptor (#8594)
don't bother constricting a CacheContext unless we need one.
2020-10-21 22:57:45 +01:00
Richard van der Hoff 1f4269700c Push some deferred wrangling down into DeferredCache 2020-10-21 15:39:25 +01:00
Richard van der Hoff 4182bb812f move DeferredCache into its own module 2020-10-14 23:38:14 +01:00
Richard van der Hoff 9f87da0a84 Rename Cache->DeferredCache 2020-10-14 23:38:14 +01:00
Richard van der Hoff 7eff59ec91 Add some more type annotations to Cache 2020-10-14 23:38:14 +01:00
Patrick Cloke c619253db8
Stop sub-classing object (#8249) 2020-09-04 06:54:56 -04:00
Erik Johnston 208e1d3eb3
Fix typing for `@cached` wrapped functions (#8240)
This requires adding a mypy plugin to fiddle with the type signatures a bit.
2020-09-03 15:38:32 +01:00
Patrick Cloke d294f0e7e1
Remove the unused inlineCallbacks code-paths in the caching code (#8119) 2020-08-19 07:09:07 -04:00
Patrick Cloke 4e874ed593
Remove unnecessary maybeDeferred calls (#8044) 2020-08-07 09:44:48 -04:00
Patrick Cloke 38e1fac886
Fix some spelling mistakes / typos. (#7811) 2020-07-09 09:52:58 -04:00
Patrick Cloke bd6dc17221
Replace iteritems/itervalues/iterkeys with native versions. (#7692) 2020-06-15 07:03:36 -04:00
Amber Brown 7cb8b4bc67
Allow configuration of Synapse's cache without using synctl or environment variables (#6391) 2020-05-11 18:45:23 +01:00
Hubert Chathi cb2db17994
look up cross-signing keys from the DB in bulk (#6486) 2019-12-12 12:03:28 -05:00
V02460 affcc2cc36 Fix LruCache callback deduplication (#6213) 2019-11-07 09:43:51 +00:00
Erik Johnston e6c7e239ef Update docstring 2019-10-29 11:48:30 +00:00
Erik Johnston d0d8a22c13 Quick fix to ensure cache descriptors always return deferreds 2019-10-28 13:33:04 +00:00
Amber Brown 864f144543
Fix up some typechecking (#6150)
* type checking fixes

* changelog
2019-10-02 05:29:01 -07:00
Richard van der Hoff 618bd1ee76
Fix some error cases in the caching layer. (#5749)
There was some inconsistent behaviour in the caching layer around how
exceptions were handled - particularly synchronously-thrown ones.

This seems to be most easily handled by pushing the creation of
ObservableDeferreds down from CacheDescriptor to the Cache.
2019-07-25 15:59:45 +01:00
Richard van der Hoff 418635e68a
Add a prometheus metric for active cache lookups. (#5750)
* Add a prometheus metric for active cache lookups.

* changelog
2019-07-24 11:33:13 +01:00
Amber Brown 4806651744
Replace returnValue with return (#5736) 2019-07-23 23:00:55 +10:00
Amber Brown 463b072b12
Move logging utilities out of the side drawer of util/ and into logging/ (#5606) 2019-07-04 00:07:04 +10:00
Amber Brown 32e7c9e7f2
Run Black. (#5482) 2019-06-20 19:32:02 +10:00
Amber Brown b37c472419
Rename async to async_helpers because `async` is a keyword on Python 3.7 (#3678) 2018-08-10 23:50:21 +10:00
Richard van der Hoff a8cbce0ced fix invalidation 2018-07-27 16:17:17 +01:00
Richard van der Hoff f102c05856 Rewrite cache list decorator
Because it was complicated and annoyed me. I suspect this will be more
efficient too.
2018-07-27 13:47:04 +01:00
Amber Brown 49af402019 run isort 2018-07-09 16:09:20 +10:00
Erik Johnston 042eedfa2b Add hacky cache factor override system 2018-06-04 15:39:28 +01:00
Amber Brown c936a52a9e
Consistently use six's iteritems and wrap lazy keys/values in list() if they're not meant to be lazy (#3307) 2018-05-31 19:03:47 +10:00
Amber Brown debff7ae09
Merge pull request #3281 from NotAFile/py3-six-isinstance
remaining isintance fixes
2018-05-30 12:44:46 +10:00
Adrian Tschira dd068ca979 remaining isintance fixes
Signed-off-by: Adrian Tschira <nota@notafile.com>
2018-05-24 20:55:08 +02:00
Amber Brown 85ba83eb51 fixes 2018-05-22 16:28:23 -05:00
Amber Brown df9f72d9e5 replacing portions 2018-05-21 19:47:37 -05:00
Richard van der Hoff 01afc563c3 Fix overzealous cache invalidation
Fixes an issue where a cache invalidation would invalidate *all* pending
entries, rather than just the entry that we intended to invalidate.
2018-04-05 16:24:04 +01:00
Richard van der Hoff bc496df192 report metrics on number of cache evictions 2018-02-05 15:34:01 +00:00
Erik Johnston b5e8d529e6 Define CACHE_SIZE_FACTOR once 2017-07-04 09:56:44 +01:00
Erik Johnston bd7bb5df71 Pull out if statement from for loop 2017-05-22 15:12:19 +01:00
Erik Johnston e3417a06e2 Update list cache to handle one arg case
We update the normal cache descriptors to handle caches with a single
argument specially so that the key wasn't a 1-tuple. We need to update
the cache list to be aware of this.
2017-05-22 15:04:42 +01:00
Erik Johnston ffad4fe35b Don't update event cache hit ratio from get_joined_users
Otherwise the hit ration of plain get_events gets completely skewed by
calls to get_joined_users* functions.
2017-05-08 16:06:17 +01:00
Erik Johnston d2d8ed4884 Optimise caches with single key 2017-05-04 14:18:46 +01:00
Erik Johnston 119cb9bbcf Reduce cache size by not storing deferreds
Currently the cache descriptors store deferreds rather than raw values,
this is a simple way of triggering only one database hit and sharing the
result if two callers attempt to get the same value.

However, there are a few caches that simply store a mapping from string
to string (or int). These caches can have a large number of entries,
under the assumption that each entry is small. However, the size of a
deferred (specifically the size of ObservableDeferred) is signigicantly
larger than that of the raw value, 2kb vs 32b.

This PR therefore changes the cache descriptors to store the raw values
rather than the deferreds.

As a side effect cached storage function now either return a deferred or
the actual value, as the cached list decriptor already does. This is
fine as we always end up just yield'ing on the returned value
eventually, which handles that case correctly.
2017-04-25 10:23:11 +01:00
Erik Johnston 4d17add8de Remove unused instance variable 2017-03-31 09:38:27 +01:00
Erik Johnston 6194a64ae9 Doc new instance variables 2017-03-30 14:19:10 +01:00
Erik Johnston 014fee93b3 Manually calculate cache key as getcallargs is expensive
This is because getcallargs recomputes the getargspec, amongst other
things, which we don't need to do as its already been done
2017-03-30 14:14:46 +01:00
Erik Johnston 86780a8bc3 Don't convert to deferreds when not necessary 2017-03-30 14:14:36 +01:00
Richard van der Hoff f9b4bb05e0 Fix the logcontext handling in the cache wrappers (#2077)
The cache wrappers had a habit of leaking the logcontext into the reactor while
the lookup function was running, and then not restoring it correctly when the
lookup function had completed. It's all the fault of
`preserve_context_over_{fn,deferred}` which are basically a bit broken.
2017-03-30 13:22:24 +01:00