Re: [mp2] Memory not being shared

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Kurt Hansen wrote:
> Hello,
> 
> I'm having problems getting modules loaded at Apache start to be shared 
> across the children. Here's the output I get from Apache::VMonitor (I've 
> editted down to just 2 children):
> 
>    Size  Share VSize   RSS   M Elapsed LastReq Srvd
>     ----- ----- -----  ---- --  ------ ------ ----
> 12: 89.5M  4.2M 89.5M 70.9M _  0.000s  0.000s    0
> 8: 89.5M  4.2M 89.5M 70.9M _  0.000s  0.000s    0
> 
> Total:     1501392K (1432M) size, 1435471K (1369M) approx real size 
> (-shared)
> 
> Both the totals and the individual numbers imply very little memory is 
> being shared. As I understand the output from VMonitor, only 4.2M out of 
> 89.5M are being shared. (Yes, Apache is awfully big, that's my next step 
> in optimization.)
> 
> I'm loading the vast majority of my modules in a startup.pl file, so I 
> don't understand why they aren't being shared. Obviously, I am missing 
> something. Any pointers on where I should look next would be very 
> helpful. Here is the information about my system:
> 
> Fedora Core 2
> perl 5.8.5 (threaded)
> Apache 2.0.52 (pre-fork -- config params below)
> mp2 2.0.0-RC4 (DSO -- config params below)
> apreq2 (2/10/05 version)
> 
> Relevant parts of httpd.conf (CWApache::Apache2Handler is use'd in 
> startup.pl):
> 
> LoadModule perl_module modules/mod_perl.so
> LoadModule apreq_module       modules/mod_apreq.so
> ...
> PerlRequire /usr/local/apache2/mp/conf/startup.pl

what's in that file? If you don't preload all your modules that explains 
why you don't have the sharing.

> <Location / >
>       SetHandler perl-script
>       PerlResponseHandler  CWApache::Apache2Handler
> </Location>
> 
> Config params for apache and mod_perl:
> 
> ./configure --prefix=/usr/local/apache2/mp --with-mpm=prefork 
> --disable-cgi --disable-userdir --enable-auth-dbm --enable-speling
> 
> perl Makefile.PL MP_APXS=/usr/local/apache2/mp/bin/apxs MP_INST_APACHE2=1

for the future, the bug report guidelines can be found here:
http://perl.apache.org/bugs/


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