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https://issues.apache.org/jira/browse/LOG4J2-184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13618898#comment-13618898
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Andreas Rytina commented on LOG4J2-184:
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sure, here the output with status set to debug:
2013-04-01 18:42:37,337 DEBUG Generated plugins in 0.115481476 seconds
2013-04-01 18:42:37,344 DEBUG Calling createLayout on class
org.apache.logging.log4j.core.layout.PatternLayout for element PatternLayout
with params(pattern="%m%n", Configuration(ConfigTest), null, charset="null")
2013-04-01 18:42:37,469 DEBUG Generated plugins in 0.125255928 seconds
2013-04-01 18:42:37,471 DEBUG Calling createAppender on class
org.apache.logging.log4j.core.appender.ConsoleAppender for element Console with
params(PatternLayout(%m%n), null, target="null", name="STDOUT", follow="null",
suppressExceptions="null")
2013-04-01 18:42:37,471 DEBUG Jansi is not installed
2013-04-01 18:42:37,472 DEBUG Calling createAppenders on class
org.apache.logging.log4j.core.config.plugins.AppendersPlugin for element
appenders with params(appenders={STDOUT})
2013-04-01 18:42:37,580 DEBUG Generated plugins in 0.107575072 seconds
2013-04-01 18:42:37,581 DEBUG Calling createAppenderRef on class
org.apache.logging.log4j.core.config.AppenderRef for element appender-ref with
params(ref="STDOUT", level="null", null)
2013-04-01 18:42:37,582 DEBUG Calling createLogger on class
org.apache.logging.log4j.core.config.LoggerConfig$RootLogger for element root
with params(additivity="null", level="debug",
appender-ref={org.apache.logging.log4j.core.config.AppenderRef@39757c6f},
properties={}, Configuration(ConfigTest), null)
2013-04-01 18:42:37,582 DEBUG Calling createLoggers on class
org.apache.logging.log4j.core.config.plugins.LoggersPlugin for element loggers
with params(loggers={root})
log4j 2.0 initialization took 988ms
> the performance for the log4j initialization needs to be improved
> -----------------------------------------------------------------
>
> Key: LOG4J2-184
> URL: https://issues.apache.org/jira/browse/LOG4J2-184
> Project: Log4j 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0-beta4
> Reporter: Andreas Rytina
> Attachments: Log4j2InitializationPerformanceTest.java
>
>
> The initialization of Log4j 2.0 beta4 via an InputStream takes too long. I
> attached an small performance test which reproduces the problem. On my
> machine (Dell Latidude E6530 with an Intel Core i7-3720QM CPU @ 2.6 GHz and 8
> GB RAM, OS: Windows 7 64-bit) the test takes approximately one second to
> complete. On the machine at the customer project, I'm currently working on,
> it's even worse.
> After analyzing this, I found out that the method
> org.apache.logging.log4j.core.config.plugins.PluginManager.collectPlugins()
> is called way to often which consumes most time of the initialization!
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