[SUREFIRE-658] Excessive synchronization in ReporterManager blocks performance

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.6
• Fix Version/s: 2.7
• Component/s: 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
• Assignee: Kristian Rosenvold
• Reporter: Kristian Rosenvold
• Created: 05/Nov/10 11:59
• Updated: 05/Nov/10 12:45
• Resolved: 05/Nov/10 12:45

Description

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.