diff options
Diffstat (limited to 'synapse/metrics/metric.py')
| -rw-r--r-- | synapse/metrics/metric.py | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/synapse/metrics/metric.py b/synapse/metrics/metric.py index 368fc24984..6f82b360bc 100644 --- a/synapse/metrics/metric.py +++ b/synapse/metrics/metric.py @@ -15,6 +15,7 @@ from itertools import chain +from collections import Counter # TODO(paul): I can't believe Python doesn't have one of these @@ -55,30 +56,29 @@ class CounterMetric(BaseMetric): """The simplest kind of metric; one that stores a monotonically-increasing integer that counts events.""" + __slots__ = ("counts") + def __init__(self, *args, **kwargs): super(CounterMetric, self).__init__(*args, **kwargs) - self.counts = {} + self.counts = Counter() # Scalar metrics are never empty if self.is_scalar(): self.counts[()] = 0 def inc_by(self, incr, *values): - if len(values) != self.dimension(): - raise ValueError( - "Expected as many values to inc() as labels (%d)" % (self.dimension()) - ) + # if len(values) != self.dimension(): + # raise ValueError( + # "Expected as many values to inc() as labels (%d)" % (self.dimension()) + # ) # TODO: should assert that the tag values are all strings - if values not in self.counts: - self.counts[values] = incr - else: - self.counts[values] += incr + self.counts[values] += incr def inc(self, *values): - self.inc_by(1, *values) + self.counts[values] += 1 def render_item(self, k): return ["%s%s %d" % (self.name, self._render_key(k), self.counts[k])] @@ -132,6 +132,8 @@ class CacheMetric(object): This metric generates standard metric name pairs, so that monitoring rules can easily be applied to measure hit ratio.""" + __slots__ = ("name", "hits", "total", "size") + def __init__(self, name, size_callback, labels=[]): self.name = name |