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authorErik Johnston <erik@matrix.org>2018-02-21 20:49:55 +0000
committerRichard van der Hoff <richard@matrix.org>2018-06-04 15:39:28 +0100
commit042eedfa2b56caef0d4873583e768ca3664a881f (patch)
tree304633d21c65ea0f861dad8f3b22fe51dbccded5 /synapse/util/caches/__init__.py
parentPut python's logs into Trial when running unit tests (#3319) (diff)
downloadsynapse-042eedfa2b56caef0d4873583e768ca3664a881f.tar.xz
Add hacky cache factor override system
Diffstat (limited to 'synapse/util/caches/__init__.py')
-rw-r--r--synapse/util/caches/__init__.py10
1 files changed, 10 insertions, 0 deletions
diff --git a/synapse/util/caches/__init__.py b/synapse/util/caches/__init__.py
index 183faf75a1..900575eb3c 100644
--- a/synapse/util/caches/__init__.py
+++ b/synapse/util/caches/__init__.py
@@ -22,6 +22,16 @@ import six
 
 CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.5))
 
+
+def get_cache_factor_for(cache_name):
+    env_var = "SYNAPSE_CACHE_FACTOR_" + cache_name.upper()
+    factor = os.environ.get(env_var)
+    if factor:
+        return float(factor)
+
+    return CACHE_SIZE_FACTOR
+
+
 caches_by_name = {}
 collectors_by_name = {}