Re: miniserv memory usage optimization

[Ryan W. M. <ry...@gu...>]

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On Tue, 6 Feb 2001, Jamie Cameron wrote:

> Hennadiy Karpov wrote:
> 
> > Further improvement can be achived by using on-demand
> > compiling of library subroutines. Almost all Webmin CGI
> > scripts use web-lib.pl which contains tens of subroutines.
> > But almost all scrips use only few subroutines and rest only
> > consume system memory. To activate perl on-demand compiling
> > feature I added in web-lib.pl two lines after init code:
> > 
> > use SelfLoader;
> > __DATA__
> > 
> > This minor changes lead to decreasing in memory usage about
> > 400K per miniserv process (note, this memory is'n shared!).
> > For heavily loaded Webmin (for instance, in ISP envinronment)
> > this may be critical. Also this changes slightly improve Webmin
> > response time (in my case 10-15%).
> 
> Is that SelfLoader module available in all versions of Perl 5?
> If not, I might put it in as  eval "use SelfLoader";  to prevent
> problems on Perl installs that don't have it.

It appears to be included in both perl 5.003003 and perl 5.6:

  [rwm@ryan rwm]$ rpm -q perl
  perl-5.00503-10
  [rwm@ryan rwm]$ rpm -ql perl | grep SelfLoader
  /usr/lib/perl5/5.00503/SelfLoader.pm
  /usr/lib/perl5/man/man3/SelfLoader.3.gz

  [root@magneto /root]# rpm -q perl
  perl-5.6.0-1.0.6
  [root@magneto /root]# rpm -ql perl | grep SelfLoader
  /usr/lib/perl5/5.6.0/SelfLoader.pm
  /usr/share/man/man3/SelfLoader.3pm

Cheers,
Ryan

 +-- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --+
   Ryan W. Maple          "I dunno, I dream in Perl sometimes..."  -LW
   Guardian Digital, Inc.                     ry...@gu...
 +-- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --+

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