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Merge pull request #611 from matrix-org/erikj/expiring_cache_size
Report size of ExpiringCache
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commit
742ec37ca3
1 changed files with 14 additions and 2 deletions
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@ -13,6 +13,8 @@
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# See the License for the specific language governing permissions and
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# limitations under the License.
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from synapse.util.caches import cache_counter, caches_by_name
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import logging
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import logging
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@ -47,6 +49,8 @@ class ExpiringCache(object):
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self._cache = {}
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self._cache = {}
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caches_by_name[cache_name] = self._cache
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def start(self):
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def start(self):
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if not self._expiry_ms:
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if not self._expiry_ms:
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# Don't bother starting the loop if things never expire
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# Don't bother starting the loop if things never expire
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@ -72,7 +76,12 @@ class ExpiringCache(object):
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self._cache.pop(k)
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self._cache.pop(k)
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def __getitem__(self, key):
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def __getitem__(self, key):
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entry = self._cache[key]
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try:
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entry = self._cache[key]
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cache_counter.inc_hits(self._cache_name)
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except KeyError:
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cache_counter.inc_misses(self._cache_name)
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raise
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if self._reset_expiry_on_get:
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if self._reset_expiry_on_get:
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entry.time = self._clock.time_msec()
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entry.time = self._clock.time_msec()
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@ -105,9 +114,12 @@ class ExpiringCache(object):
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logger.debug(
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logger.debug(
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"[%s] _prune_cache before: %d, after len: %d",
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"[%s] _prune_cache before: %d, after len: %d",
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self._cache_name, begin_length, len(self._cache.keys())
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self._cache_name, begin_length, len(self._cache)
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)
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)
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def __len__(self):
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return len(self._cache)
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class _CacheEntry(object):
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class _CacheEntry(object):
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def __init__(self, time, value):
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def __init__(self, time, value):
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