From f7ddfe17a30a50205a23bf5ca4d7d71e691e1e48 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Tue, 23 Aug 2022 15:53:27 +0100 Subject: Speed up `@cachedList` (#13591) This speeds things up by ~2x. The vast majority of the time is now spent in `LruCache` moving things around the linked lists. We do this via two things: 1. Don't create a deferred per-key during bulk set operations in `DeferredCache`. Instead, only create them if a subsequent caller asks for the key. 2. Add a bulk lookup API to `DeferredCache` rather than use a loop. --- synapse/util/caches/treecache.py | 3 +++ 1 file changed, 3 insertions(+) (limited to 'synapse/util/caches/treecache.py') diff --git a/synapse/util/caches/treecache.py b/synapse/util/caches/treecache.py index c1b8ec0c73..fec31da2b6 100644 --- a/synapse/util/caches/treecache.py +++ b/synapse/util/caches/treecache.py @@ -135,6 +135,9 @@ class TreeCache: def values(self): return iterate_tree_cache_entry(self.root) + def items(self): + return iterate_tree_cache_items((), self.root) + def __len__(self) -> int: return self.size -- cgit 1.5.1