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https://issues.apache.org/jira/browse/LOG4NET-429?focusedWorklogId=669428&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-669428
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ASF GitHub Bot logged work on LOG4NET-429:
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Author: ASF GitHub Bot
Created on: 25/Oct/21 09:56
Start Date: 25/Oct/21 09:56
Worklog Time Spent: 10m
Work Description: fluffynuts closed pull request #45:
URL: https://github.com/apache/logging-log4net/pull/45
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Issue Time Tracking
-------------------
Worklog Id: (was: 669428)
Time Spent: 2h (was: 1h 50m)
> Pattern with Context property causes severe slowdown
> ----------------------------------------------------
>
> Key: LOG4NET-429
> URL: https://issues.apache.org/jira/browse/LOG4NET-429
> Project: Log4net
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.2.13
> Reporter: Jonas Versén
> Assignee: Dominik Psenner
> Priority: Minor
> Labels: performance
> Attachments: LOG4NET-429-alternative.patch, LOG4NET-429.patch
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> 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/
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