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Create new context when measuring

This commit is contained in:
Erik Johnston 2016-02-09 10:10:20 +00:00
parent 549698b1e0
commit 97294ef2fd
1 changed files with 5 additions and 2 deletions
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7
synapse/util/metrics.py
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@ -48,26 +48,29 @@ block_db_txn_duration = metrics.register_distribution(
class Measure(object): class Measure(object):
__slots__ = ["clock", "name", "start_context", "start"] __slots__ = ["clock", "name", "start_context", "start", "new_context"]
def __init__(self, clock, name): def __init__(self, clock, name):
self.clock = clock self.clock = clock
self.name = name self.name = name
self.start_context = None self.start_context = None
self.start = None self.start = None
self.new_context = LoggingContext(self.name)
def __enter__(self): def __enter__(self):
self.start = self.clock.time_msec() self.start = self.clock.time_msec()
self.start_context = LoggingContext.current_context() self.start_context = LoggingContext.current_context()
self.new_context.__enter__()
def __exit__(self, exc_type, exc_val, exc_tb): def __exit__(self, exc_type, exc_val, exc_tb):
self.new_context.__exit__(exc_type, exc_val, exc_tb)
if exc_type is not None: if exc_type is not None:
return return
duration = self.clock.time_msec() - self.start duration = self.clock.time_msec() - self.start
block_timer.inc_by(duration, self.name) block_timer.inc_by(duration, self.name)
context = LoggingContext.current_context() context = self.new_context
if context != self.start_context: if context != self.start_context:
logger.warn( logger.warn(