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Re: JIT logging information needed

by Matthew K. Williams :: Rate this Message:

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I'll do so; it may be a day or so before I can set it up -- I'm going to
be presenting at codemash this week.

Matt
On Tue, 2008-01-08 at 09:27 -0800, Charles Oliver Nutter wrote:

> I have just committed a new logging setting I would appreciate JRuby on
> Rails users testing out.
>
> Last night, I added a property that limits the number of JITted methods,
> to avoid filling up JVM memory and crashing the server. We have been
> unable to find a leak, but we have realized we need to cap JIT to keep
> the size under control.
>
> But we do not know what a good per-runtime default limit would be. I
> have arbitrarily chosen 2048 for now.
>
> I would greatly appreciate if any Rails users that can safely do so
> would update to trunk and run their apps for a good day or so with the
> following properties set:
>
> jruby.jit.max=-1  (no limit)
> jruby.jit.logEvery=1000
>
> The information I'm looking for is what kind of max number of methods
> your application reaches under typical usage. Based on that, we'll
> collectively try to come up with a good default.
>
> Thank you for your help!
>
> - Charlie
>
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