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From "William A. Rowe, Jr." <>
Subject Re: svn commit: r393032 - /httpd/httpd/branches/2.0.x/STATUS
Date Tue, 11 Apr 2006 17:31:34 GMT
Jeff Trawick wrote:
> On 4/10/06, William A. Rowe, Jr. <> wrote:
>>This pool is or is not created in the parent?  If its the parent it's
>>gotta be proc mutexed even if using prefork.
> It is created in the parent and used only during request processing. 
> Why does it need to be proc mutexed?  Each process has its own copy. 
> There is no shared memory involved.

Ah... of course.  The pages are copy-on-write.

So there is no proc mutexing issue :)

>>If it's process-local, then please don't depend on APR_THREADED, please
>>please please poll the MPM to determine if the mpm has_threads?  It's a
>>huge waste for prefork users with a shared (threaded) apr :(
> That minor performance improvement for some (lots of?) prefork users
> should first be addressed in trunk, and implementation/backport of
> that should not hold up this critical bug fix.

But the code is there, and what we are using in mod_ssl and others.  Please
don't inject a regression where we already cleaned these up once before :(

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