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* Remove DEBUG_CACHESErik Johnston2017-04-251-2/+0
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* Reduce cache size by not storing deferredsErik Johnston2017-04-251-18/+21
| | | | | | | | | | | | | | | | | | | | 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.
* Only intern ascii stringsErik Johnston2017-04-241-18/+11
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* Remove unused instance variableErik Johnston2017-03-311-4/+0
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* Doc new instance variablesErik Johnston2017-03-301-1/+8
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* Manually calculate cache key as getcallargs is expensiveErik Johnston2017-03-301-6/+28
| | | | | This is because getcallargs recomputes the getargspec, amongst other things, which we don't need to do as its already been done
* Don't convert to deferreds when not necessaryErik Johnston2017-03-301-1/+4
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* Fix the logcontext handling in the cache wrappers (#2077)Richard van der Hoff2017-03-301-16/+14
| | | | | | | 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.
* Fix caching of remote servers' signature keysRichard van der Hoff2017-03-221-63/+72
| | | | | | | | | The `@cached` decorator on `KeyStore._get_server_verify_key` was missing its `num_args` parameter, which meant that it was returning the wrong key for any server which had more than one recorded key. By way of a fix, change the default for `num_args` to be *all* arguments. To implement that, factor out a common base class for `CacheDescriptor` and `CacheListDescriptor`.
* Fix assertion to stop transaction queue getting wedgedRichard van der Hoff2017-03-151-1/+1
| | | | | | | | ... and update some docstrings to correctly reflect the types being used. get_new_device_msgs_for_remote can return a long under some circumstances, which was being stored in last_device_list_stream_id_by_dest, and was then upsetting things on the next loop.
* Add setdefault key to ExpiringCacheErik Johnston2017-03-101-0/+7
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* CommentErik Johnston2017-02-021-1/+4
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* CommentErik Johnston2017-02-021-0/+2
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* Update LruCache size estimate on clearErik Johnston2017-01-181-0/+2
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* Measure metrics of string_cacheErik Johnston2017-01-171-3/+8
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* Fix typo in return typeErik Johnston2017-01-171-3/+2
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* Rename and comment tree_to_leaves_iteratorErik Johnston2017-01-172-5/+8
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* Remove needless call to evict()Erik Johnston2017-01-171-1/+0
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* Speed up cache size calculationErik Johnston2017-01-175-46/+128
| | | | | | | | | | | 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.
* Use OrderedDict in ExpiringCacheErik Johnston2017-01-161-10/+4
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* Add support for 'iterable' to ExpiringCacheErik Johnston2017-01-161-9/+17
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* Optionally measure size of cache by sum of length of valuesErik Johnston2017-01-132-19/+38
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* Change get_pos_of_last_change to return upper boundErik Johnston2016-09-151-3/+4
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* Use stream_change cache to make get_forward_extremeties_for_room cache more ↵Erik Johnston2016-09-151-0/+5
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* Ensure invalidation list does not grow unboundedlyErik Johnston2016-08-192-20/+16
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* Rename to on_invalidateErik Johnston2016-08-191-16/+10
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* Make cache_context an explicit optionErik Johnston2016-08-191-8/+27
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* Remove lru optionErik Johnston2016-08-191-23/+8
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* Add concept of cache contextsErik Johnston2016-08-193-20/+99
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* Cache federation state responsesErik Johnston2016-07-211-2/+11
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* Merge branch 'erikj/cache_perf' of github.com:matrix-org/synapse into developErik Johnston2016-06-031-10/+25
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| * Pull out update_results_dictErik Johnston2016-06-031-8/+7
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| * Small optimisation to CacheListDescriptorErik Johnston2016-06-031-2/+2
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| * Make cachedList go a bit fasterErik Johnston2016-06-031-10/+34
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* | Change CacheMetrics to be quickerErik Johnston2016-06-035-25/+44
|/ | | | | | We change it so that each cache has an individual CacheMetric, instead of having one global CacheMetric. This means that when a cache tries to increment a counter it does not need to go through so many indirections.
* Deduplicate joinsErik Johnston2016-04-071-1/+1
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* Make the cache objects be per instance rather than being globalMark Haines2016-04-061-21/+24
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* Fix typoMark Haines2016-03-241-1/+1
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* Deduplicate identical /sync requestsMark Haines2016-03-241-0/+46
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* Simplify intern_dictErik Johnston2016-03-231-17/+10
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* Intern all the thingsErik Johnston2016-03-231-1/+57
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* String internErik Johnston2016-03-231-0/+8
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* Make LruCache use a dedicated _Node classErik Johnston2016-03-221-32/+41
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* Return list, not generator.Erik Johnston2016-03-141-3/+1
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* Use syntax that works on both py2.7 and py3Mark Haines2016-03-071-1/+1
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* Limit stream change cache size tooErik Johnston2016-03-011-1/+5
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* Move cache size fiddling to descriptors only. Fix testsErik Johnston2016-03-011-2/+2
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* Add enviroment variable SYNAPSE_CACHE_FACTOR, default it to 0.1Erik Johnston2016-03-011-0/+6
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* Reraise exceptionErik Johnston2016-03-011-0/+1
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* Correct cache miss detectionErik Johnston2016-03-011-1/+1
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* Report size of ExpiringCacheErik Johnston2016-02-231-2/+13
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* Change the way we figure out presence updates for small deltasErik Johnston2016-02-231-0/+16
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* Fix up logcontextsErik Johnston2016-02-082-6/+13
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* Fix flake8 warnings for new flake8Daniel Wagner-Hall2016-02-023-4/+4
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* If stream pos is greater then earliest known key and entity hasn't changed, ↵Erik Johnston2016-01-291-8/+3
| | | | then entity hasn't changed
* Prefill stream change cachesErik Johnston2016-01-291-1/+4
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* Merge pull request #536 from matrix-org/erikj/syncErik Johnston2016-01-291-0/+107
|\ | | | | Make /sync "better".
| * If the same as the earliest key, assume nothing has changed.Erik Johnston2016-01-281-0/+5
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| * Correctly update _entity_to_keyErik Johnston2016-01-281-4/+5
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| * Fix inequalitiesErik Johnston2016-01-281-2/+2
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| * Include cache hits with has_entity_changedErik Johnston2016-01-281-0/+4
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| * Change name and doc has_entity_changedErik Johnston2016-01-281-1/+3
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| * Cache tags and account dataErik Johnston2016-01-282-92/+95
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| * Ensure keys to RoomStreamChangeCache are intsErik Johnston2016-01-281-0/+6
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| * Invalidate caches properly. Remove unused argErik Johnston2016-01-281-2/+2
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| * Add cache to room streamErik Johnston2016-01-271-0/+86
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* | Directly set self.valueErik Johnston2016-01-291-1/+1
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* | Remove spurious self.sizeErik Johnston2016-01-291-1/+0
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* | Correctly bookkeep the size of TreeCacheErik Johnston2016-01-291-3/+28
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* | Make TreeCache keep track of its own size.Erik Johnston2016-01-292-6/+10
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* | Reset size on clearErik Johnston2016-01-291-0/+2
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* Don't add the member functiopn if we're not using treecacheDavid Baker2016-01-221-1/+4
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* docsDavid Baker2016-01-221-1/+5
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* Revert all the bits changing keys of eeverything that used LRUCaches to tuplesDavid Baker2016-01-222-6/+6
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* Make LRU cache not default to treecache & add options to use itDavid Baker2016-01-222-10/+19
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* Add __contains__David Baker2016-01-221-0/+3
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* Docs for treecacheDavid Baker2016-01-221-0/+5
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* Add invalidate_many here tooDavid Baker2016-01-221-0/+1
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* peppateDavid Baker2016-01-211-2/+2
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* Change LRUCache to be tree-based so we can delete subtrees.David Baker2016-01-214-14/+102
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* copyrightsMatthew Hodgson2016-01-076-6/+6
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* Add some docstring explaining the snapshot cache doesMark Haines2015-12-231-1/+23
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* Add a unit test for the snapshot cacheMark Haines2015-12-231-2/+2
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* Add a cache for initialSync responses that expires after 5 minutesMark Haines2015-12-221-0/+71
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* Don't assume @cachedList function returns keys for everythingErik Johnston2015-08-181-1/+1
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* DocstringErik Johnston2015-08-121-0/+27
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* Merge branch 'develop' of github.com:matrix-org/synapse into ↵Erik Johnston2015-08-121-1/+3
| | | | erikj/dictionary_cache
* Wire up the dictionarycache to the metricsErik Johnston2015-08-123-45/+41
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* Move all the caches into their own package, synapse.util.cachesErik Johnston2015-08-115-0/+746
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