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Posted to dev@perl.apache.org by Randy Kobes <ra...@theoryx5.uwinnipeg.ca> on 2004/04/24 08:01:51 UTC
ThreadsPerChild on Win32
Hi Steve, and all,
With great trepidation, I ask ... Steve, with cvs
mod_perl 2, and Apache/2.0.49, have you seen any errors
connected with having to raise ThreadsPerChild? I find I can
run the tests OK with 'nmake test' (and they start in about
half the time now!), but if I try to run an individual test,
or groups of tests, I get an error with suggestion of
raising ThreadsPerChild. This is fixed by raising it to
about 25.
--
best regards,
randy
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Re: ThreadsPerChild on Win32
Posted by Geoffrey Young <ge...@modperlcookbook.org>.
>>Stas came up with a workaround solution for mp2, but it didn't get
>>applied because we figured that the problem will go away from 2.0.50
>>onwards anyway.
>
>
> Thanks, Steve - I'd forgotten that that patch didn't make it
> into 2.0.49.
yeah, bill had forgotten about it, but it was the first commit to 2.0.50, so
it will definitely be in the next release.
http://cvs.apache.org/viewcvs.cgi/httpd-2.0/server/mpm/winnt/child.c?only_with_tag=APACHE_2_0_BRANCH
--Geoff
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Re: ThreadsPerChild on Win32
Posted by Randy Kobes <ra...@theoryx5.uwinnipeg.ca>.
On Mon, 26 Apr 2004, Steve Hay wrote:
> Randy Kobes wrote:
>
> >Hi Steve, and all,
> > With great trepidation, I ask ... Steve, with cvs
> >mod_perl 2, and Apache/2.0.49, have you seen any errors
> >connected with having to raise ThreadsPerChild? I find I can
> >run the tests OK with 'nmake test' (and they start in about
> >half the time now!), but if I try to run an individual test,
> >or groups of tests, I get an error with suggestion of
> >raising ThreadsPerChild. This is fixed by raising it to
> >about 25.
> >
> This was discussed recently on modperl@perl.apache.org -- see the thread
> starting at
> http://marc.theaimsgroup.com/?l=apache-modperl&m=107885462525517&w=2.
>
> I was needing to raise ThreadsPerChild from 20 to 21 as of 1.99_13, and
> it turned out that it was due to a bug in Apache itself. Bill Stoddard
> kindly produced a patch for Apache that fixed it
> (http://cvs.apache.org/viewcvs.cgi/httpd-2.0/server/mpm/winnt/child.c?r1=1.32&r2=1.33),
> but it didn't make it into Apache 2.0.49.
>
> Stas came up with a workaround solution for mp2, but it didn't get
> applied because we figured that the problem will go away from 2.0.50
> onwards anyway.
Thanks, Steve - I'd forgotten that that patch didn't make it
into 2.0.49.
--
best regards,
randy
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Re: ThreadsPerChild on Win32
Posted by Steve Hay <st...@uk.radan.com>.
Randy Kobes wrote:
>Hi Steve, and all,
> With great trepidation, I ask ... Steve, with cvs
>mod_perl 2, and Apache/2.0.49, have you seen any errors
>connected with having to raise ThreadsPerChild? I find I can
>run the tests OK with 'nmake test' (and they start in about
>half the time now!), but if I try to run an individual test,
>or groups of tests, I get an error with suggestion of
>raising ThreadsPerChild. This is fixed by raising it to
>about 25.
>
This was discussed recently on modperl@perl.apache.org -- see the thread
starting at
http://marc.theaimsgroup.com/?l=apache-modperl&m=107885462525517&w=2.
I was needing to raise ThreadsPerChild from 20 to 21 as of 1.99_13, and
it turned out that it was due to a bug in Apache itself. Bill Stoddard
kindly produced a patch for Apache that fixed it
(http://cvs.apache.org/viewcvs.cgi/httpd-2.0/server/mpm/winnt/child.c?r1=1.32&r2=1.33),
but it didn't make it into Apache 2.0.49.
Stas came up with a workaround solution for mp2, but it didn't get
applied because we figured that the problem will go away from 2.0.50
onwards anyway.
As for CVS mp2 with vanilla Apache 2.0.49: I get the "Server ran out of
threads to serve requests." error output 3 times into my error_log.
Increasing ThreadsPerChild by 3 (to 23) fixes things. This is exactly
in line with the findings discussed above.
And my test suite server started up very quickly too -- only 23secs ;)
- Steve
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