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Rename CacheCounterMetric to just CacheMetric; add a CallbackMetric component to give the size of the cache

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This commit is contained in:
Paul "LeoNerd" Evans 2015-03-04 17:34:23 +00:00
parent e02cc249da
commit 8664599af7
4 changed files with 30 additions and 19 deletions
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6
synapse/storage/_base.py
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@ -59,7 +59,7 @@ def cached(max_entries=1000):
def wrap(orig):
cache = OrderedDict()
counter = metrics.register_cachecounter(orig.__name__)
counter = metrics.register_cache(orig.__name__, lambda: len(cache))
def prefill(key, value):
while len(cache) > max_entries:
@ -183,8 +183,8 @@ class SQLBaseStore(object):
self._get_event_counters = PerformanceCounters()
self._get_event_cache = LruCache(hs.config.event_cache_size)
self._get_event_cache_counter = metrics.register_cachecounter(
"get_event"
self._get_event_cache_counter = metrics.register_cache("get_event",
size_callback=lambda: len(self._get_event_cache),
)
def start_profiling(self):