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Add enviroment variable SYNAPSE_CACHE_FACTOR, default it to 0.1

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This commit is contained in:
Erik Johnston 2016-03-01 12:56:39 +00:00
parent 742ec37ca3
commit 910fc0f28f
3 changed files with 10 additions and 2 deletions
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6
synapse/util/caches/descriptors.py
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@ -28,6 +28,7 @@ from twisted.internet import defer
from collections import OrderedDict
import os
import functools
import inspect
import threading
@ -38,9 +39,14 @@ logger = logging.getLogger(__name__)
_CacheSentinel = object()
CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
class Cache(object):
def __init__(self, name, max_entries=1000, keylen=1, lru=True, tree=False):
max_entries = int(max_entries * CACHE_SIZE_FACTOR)
if lru:
cache_type = TreeCache if tree else dict
self.cache = LruCache(