[logback-dev] [JIRA] Created: (LBCLASSIC-317) Improve reconfigure performance

David J. M. Karlsen (JIRA) noreply-jira at qos.ch
Tue Jan 10 14:47:26 CET 2012

Improve reconfigure performance

                 Key: LBCLASSIC-317
                 URL: http://jira.qos.ch/browse/LBCLASSIC-317
             Project: logback-classic
          Issue Type: Improvement
          Components: Other
    Affects Versions: 1.0.0
         Environment: N/A
            Reporter: David J. M. Karlsen
            Assignee: Logback dev list

Looking at the code http://logback.qos.ch/xref/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.html it seems like the reconfigure stuff is checked at every 16th logger use.
Wouldn't it be better to save the timestamp of the configuration file, and instead of number of invocations, measure the time since last reconfig, and check the delta until "now", and if it has passed, check the file timestamp again if it is newer.

In a busy application 16 log statements will be called very often, so by using a period of let's say 30 seconds would save a lot of checking?

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