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From "Francois Saint-Jacques (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-1115) producer performance affected by trace/debug calls
Date Fri, 01 Nov 2013 21:21:18 GMT
Francois Saint-Jacques created KAFKA-1115:
---------------------------------------------

             Summary: producer performance affected by trace/debug calls
                 Key: KAFKA-1115
                 URL: https://issues.apache.org/jira/browse/KAFKA-1115
             Project: Kafka
          Issue Type: Improvement
          Components: producer 
    Affects Versions: 0.8
            Reporter: Francois Saint-Jacques
            Assignee: Francois Saint-Jacques


After investigating high CPU usage on some producers in production, we found out that a lot
of time was passed in string construction for logging of DEBUG and TRACE level.

This patch removes most of the logging calls, on our systems it cuts CPU usage down to half
of what it used to be.

Note that this is a significant boost in performance for environment where there are thousands
of msg/s.



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