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Merge pull request #224 from matrix-org/erikj/reactor_metrics
Add some metrics about the reactor
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commit
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@ -18,8 +18,12 @@ from __future__ import absolute_import
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import logging
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from resource import getrusage, getpagesize, RUSAGE_SELF
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import functools
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import os
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import stat
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import time
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from twisted.internet import reactor
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from .metric import (
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CounterMetric, CallbackMetric, DistributionMetric, CacheMetric
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@ -144,3 +148,28 @@ def _process_fds():
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return counts
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get_metrics_for("process").register_callback("fds", _process_fds, labels=["type"])
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reactor_metrics = get_metrics_for("reactor")
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tick_time = reactor_metrics.register_distribution("tick_time")
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pending_calls_metric = reactor_metrics.register_distribution("pending_calls")
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def runUntilCurrentTimer(func):
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@functools.wraps(func)
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def f(*args, **kwargs):
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pending_calls = len(reactor.getDelayedCalls())
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start = time.time() * 1000
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ret = func(*args, **kwargs)
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end = time.time() * 1000
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tick_time.inc_by(end - start)
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pending_calls_metric.inc_by(pending_calls)
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return ret
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return f
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if hasattr(reactor, "runUntilCurrent"):
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# runUntilCurrent is called when we have pending calls. It is called once
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# per iteratation after fd polling.
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reactor.runUntilCurrent = runUntilCurrentTimer(reactor.runUntilCurrent)
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