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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
2011-11-20 03:30:44 +08:00
committed by Lance Stout
parent 1baf139ca4
commit deb52ad350
23 changed files with 69 additions and 72 deletions
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sleekxmpp/plugins/xep_0085/chat_states.py
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@@ -45,5 +45,5 @@ class xep_0085(base_plugin):
def _handle_chat_state(self, msg):
state = msg['chat_state']
log.debug("Chat State: %s, %s" % (state, msg['from'].jid))
log.debug("Chat State: %s, %s" , state, msg['from'].jid)
self.xmpp.event('chatstate_%s' % state, msg)