java.awt event processing performance degradation on JRE7 - linux

[Daniel D. Daugherty]

java.util.logging is currently handled by the Serviceability Team.
Adding that alias to this e-mail thread...

Dan


On 4/16/12 12:17 AM, Nicolas Carranza wrote:
> Moving the mouse pointer over a java.awt.Window using JRE7 consumes
> aprox. twice the CPU time as with JRE6 when logging is used (when a call
> to java.util.logging.getLogger(String)---even without using the returned
> Logger--- has been done). Keyboard key event processing suffers the same
> performance penalty. For steps to reproduce this problem please look at:
> http://www.java.net/forum/topic/performance/general-performance-discussion/jre7s-javaawt-performance-degradation-caused-javautillogging-linux
> .
>
> The performance degradation seems to be "enabled" by the call of
> sun.util.logging.PlatformLogger.redirectPlatformLoggers() done inside
> java.util.LogManager.readPrimorialConfiguration() on JRE7. Call chain:
> Logger.getLogger()->LogManager.getLogManager()->
> LogManager.readPrimordialConfiguration()->sun.util.logging.PlatformLogger.redirectPlatformLoggers().
>
> This call is not made on JRE6. If this problem is not easy to solve then
> I guess is better to remove this call from JRE7's
> readPrimordialConfiguration as it does more harm than good.
>
> Please let me know if there is a better place to report this problem. A
> couple of weeks ago I "opened" a bug report on bugs.sun.com but I
> received no response at all.
>
> Cheers,
> Nicolas