Perl slowness

[Noam Rathaus]

Hi,

I tried them both (the profilers), they just tell me which modules take a
lot of time load, not what the reason are, these modules are quite big, 1000
lines... which makes it harder to just start cutting through to understand
why simply doing:
"use MyModule"

Takes 0.5second to go through

The machine is Debian based, running the testing kernel 2.6.30-1

The redhat web site doesn't load to me :( so I can't check

On Wed, Sep 9, 2009 at 5:14 AM, Amos Shapira <amos.shapira at gmail.com> wrote:

> 2009/9/8 Noam Rathaus <noamr at beyondsecurity.com>
>
>> Hi,
>>
>> I have two machines, their hardware is not identical, but their
>> installation is.
>>
>> One is a 3 years old DELL server, while the other is a 1 year old server.
>>
>> One is running 2.6.26-2-686 while the other 2.6.30-1-686
>>
>
> Which distribution is this? The kernel versions don't suggest RHEL 5 but
> still this sounds like a similar problem:
>
> The following RHEL/CentOS bug haven't been closed until someone had the
> brains to submit the issue to slashdot:
> https://bugzilla.redhat.com/show_bug.cgi?id=379791
>
> This was a bug introduced by RedHat themselves so not cross-platform, but
> as far as I remember it was introduced due to wrong patching of a problem in
> vanilla perl, so maybe other distro's/versions had similar problems.
>
> Your time output suggests problem at the user code level to me.
>
> What about trying to profile the perl script?
>
> http://www.perl.com/pub/a/2004/06/25/profiling.html
> http://search.cpan.org/~jaw/Devel-Profile-1.05/Profile.pm<http://search.cpan.org/%7Ejaw/Devel-Profile-1.05/Profile.pm>
>
> And lots others from searching for "perl profile".
>
> --Amos
>
>
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