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  1. Log4net
  2. LOG4NET-429

Pattern with Context property causes severe slowdown

    Details

    • Type: Improvement
    • Status: Reopened
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 1.2.13
    • Fix Version/s: None
    • Component/s: Core
    • Labels:

      Description

      If you use a context property in your appenders pattern, there will be a significant logging slowdown. In my experience anywhere from 3 to 5 times slower (this will depend on the appender).

      I believe that as soon as you use a context property log4net will internally access the windows user name even though it's not the property you want to access. This theory comes from the fact that printing all properties in the pattern (including the costly property username) compared to just printing one will slow down the logging with the same factor.

      I've made a stackoverflow question with more details as well

      http://stackoverflow.com/questions/22612286/using-log4net-context-properties-has-negative-impact-on-performance/

        Attachments

        1. LOG4NET-429.patch
          8 kB
          Dominik Psenner
        2. LOG4NET-429-alternative.patch
          14 kB
          Stefan Bodewig

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              • Assignee:
                nachbarslumpi Dominik Psenner
                Reporter:
                ds99jove Jonas Versén
              • Votes:
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                Dates

                • Created:
                  Updated: