Add some metrics about the reactor

This commit is contained in:
Erik Johnston 2015-08-13 11:38:59 +01:00
parent 6a191d62ed
commit ba5d34a832

View File

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