Hi Dennis,
Can I ask you to try the latest Grizzly 1.9.19-SNAPSHOT built from
sources? (Know it's a bit more complicated, but artifacts were not
pushed to maven yet).
To download latest Grizzly sources please use:
svn checkout
https://www.dev.java.net/svn/grizzly/trunk/code
And then run your implementation with the following system property
set to true:
-Dcom.sun.grizzly.executePendingIOUsingSelectorThread=true
or you can set it programmatically before starting up the framework:
controller.setExecutePendingIOUsingSelectorThread(true);
Let me know the result.
Thanks.
WBR,
Alexey.
On Dec 10, 2009, at 20:53 , ddooley wrote:
>
> Hello...
>
> First I would like to say how impressed I am with Grizzly. Great job!
> However, on one of our client systems we are having a performance
> issue that
> occurs approximately every hour and can last up to ten minutes.
> When this
> happens Java takes 100% of the CPU and the garbage collect starts
> thrashing.
> Attached is the output from the HP JMeter statistics gathered on the
> system
> as well as stack dumps taken during the performance problem.
>
> I've seen a couple of posts where Grizzly seems to be stuck in
> preClose0,
> but I don't see how that was ever resolved. The stack traces
> attached show
> this is a likely scenario.
>
> We are using grizzly web server 1.9.18-e with one selector thread
> and 30
> maximum worker threads. The client's system is a two CPU system
> with 14
> gigs (we have Java configured to 1/2 gig initial and max). Bumping
> the
> initial/max to one gig did not make a difference.
>
> Java version 1.5.0.18
> HP-UX OS version B.11.11
>
> Any help would be greatly appreciated.
> Thanks!
> --dennis
> http://old.nabble.com/file/p26733514/consecutive_sigquit_121009.txt
> consecutive_sigquit_121009.txt http://old.nabble.com/file/p26733514/GC.jpeg
> --
> View this message in context: http://old.nabble.com/Grizzly-Web-Server-on-HP-UX-PA-RISC-Performance-Issue-tp26733514p26733514.html
> Sent from the Grizzly - Users mailing list archive at Nabble.com.
>
>
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