Thanks very much Stas, and the list for the archived info. On Thu, 2004-02-12 at 02:43, Stas Bekman wrote: > Mark Maunder wrote: > > I'm creating some fairly big scalars (6 megs) under mod_perl containing > > strings, and was doing some memory profiling using Apache::Status. I > > noticed at the end of the memory usage for a particular sub, in a > > module, there is a 'PADLIST summary', and that there is some hefty > > memory usage by certain variables. > > > > I researched padlist and from what I can gather, perl doesn't entirely > > free memory when a scalar goes out of scope, in case it needs to > > reallocate it. It does this to save having to do another malloc. Is this > > correct? > > > > I'm trying to optimise memory usage on my server because I also run > > mysql on the same machine (and an upgrade is expensive). Will this > > padlist memory get freed up if another process gets hungry? Or is there > > something I should be manually doing to my scalars before they go out of > > scope? And if I do do this manual something, will I take a performance > > hit if that scalar gets re-used frequently in the sub? > > Most of the time memory is not freed. Take a look at earlier followups to > similar questions from Perrin: > http://marc.theaimsgroup.com/?l=apache-modperl&m=105899476921061&w=2 > and Doug: > http://marc.theaimsgroup.com/?l=apache-modperl&m=88913995431169&w=2 > > Notice Perrin's note on Apache::SizeLimit and read: > http://perl.apache.org/docs/1.0/guide/performance.html#Choosing_MaxClients > > > __________________________________________________________________ > Stas Bekman JAm_pH ------> Just Another mod_perl Hacker > http://stason.org/ mod_perl Guide ---> http://perl.apache.org > mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com > http://modperlbook.org http://apache.org http://ticketmaster.com -- Mark Maunder <[EMAIL PROTECTED]> ZipTree.com
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