[jira] Work started: (SUREFIRE-658) Excessive synchronization in ReporterManager blocks performance

["Kristian Rosenvold (JIRA)" <ji...@codehaus.org>]

     [ http://jira.codehaus.org/browse/SUREFIRE-658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on SUREFIRE-658 started by Kristian Rosenvold.

> Excessive synchronization in ReporterManager blocks performance
> ---------------------------------------------------------------
>
>                 Key: SUREFIRE-658
>                 URL: http://jira.codehaus.org/browse/SUREFIRE-658
>             Project: Maven Surefire
>          Issue Type: Improvement
>          Components: JUnit 3.x support, Junit 4.7+ (parallel) support, Junit 4.x support, Maven Failsafe Plugin, Maven Surefire Plugin, Maven Surefire Report Plugin, TestNG support, xml generation
>    Affects Versions: 2.6
>            Reporter: Kristian Rosenvold
>            Assignee: Kristian Rosenvold
>            Priority: Minor
>
> All the methods in ReporterManager are synchronized, effectively making this whole subsystem a blocker in terms of performance. Single threaded providers wast time acquiring the lock, parallel providers have a choke point blocking parallelism. Since this block guards all the file writing of reports, it effectively reduces performance quite a lot. 

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