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This change stops sleekxmpp from spending huge amounts of time unnecessarily computing logging data that may never be used. This is a HUGE performance improvement; in some of my test runs, unnecessary string creation was accounting for > 60% of all CPU time.

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Note that using % in a string will _always_ perform the sting substitutions, because the strings are constructed before the function is called. So log.debug('%s' % expensiveoperation()) will take about the same CPU time whether or not the logging level is DEBUG or INFO. if you use , no substitutions are performed unless the string is actually logged
This commit is contained in:
Vijay Pandurangan
2011-11-19 11:30:44 -08:00
parent 7945b3e738
commit 6f3cc77bb5
23 changed files with 69 additions and 72 deletions
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4
sleekxmpp/features/feature_bind/bind.py
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@@ -42,7 +42,7 @@ class feature_bind(base_plugin):
Arguments:
features -- The stream features stanza.
"""
log.debug("Requesting resource: %s" % self.xmpp.boundjid.resource)
log.debug("Requesting resource: %s" , self.xmpp.boundjid.resource)
iq = self.xmpp.Iq()
iq['type'] = 'set'
iq.enable('bind')
@@ -55,7 +55,7 @@ class feature_bind(base_plugin):
self.xmpp.features.add('bind')
log.info("Node set to: %s" % self.xmpp.boundjid.full)
log.info("Node set to: %s" , self.xmpp.boundjid.full)
if 'session' not in features['features']:
log.debug("Established Session")