One aspect to keep in mind...
Windows systems have the problem that open files cannot be deleted or
renamed. Open files - typically JARs - can be left open by
frameworks, application code, or bugs in the app server. Sometimes
these dangling open files are held open by unreachable object
references that have not yet be GCed. So, on Windows, GlassFish will
sometime try to run the GC to clean up these dangling references and,
thereby, close the open files.
We need to be careful making a blanket statement - and changing the
default setting for GlassFish - about this.
- Tim
On Jun 14, 2010, at 3:32 AM, Alexis Moussine-Pouchkine wrote:
> This makes sense.
> Please file an issue @ https://glassfish.dev.java.net/issues/enter_bug.cgi?issue_type=DEFECT
> in the "performance" category.
> I'll vote for it!
>
> cheers,
> -Alexis
>
> On 11 juin 2010, at 21:59, glassfish_at_javadesktop.org wrote:
>
>> I recommend that glassfish have the switch to disable explicit
>> garbage collection with System.gc() included in the default
>> installed setup. I inherited code with an explicit gc() call, and
>> I suspect a 3rd party library was also calling it.
>>
>> -XX:+DisableExplicitGC
>>
>> This blog entry sums it up nicely: http://java-n-stuff.blogspot.com/2009/08/turn-on-disableexplicitgc-now.html
>>
>> With this and some other performance tuning glassfish is running
>> much better for me.
>> [Message sent by forum member 'culli']
>>
>> http://forums.java.net/jive/thread.jspa?messageID=473951
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe_at_glassfish.dev.java.net
>> For additional commands, e-mail: users-help_at_glassfish.dev.java.net
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe_at_glassfish.dev.java.net
> For additional commands, e-mail: users-help_at_glassfish.dev.java.net
>
Tim Quinn | Principal Member of Technical Staff | +1.847.604.9475
Oracle GlassFish Engineering
Lake Forest, IL