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Old 03-09-2009, 01:56 PM
Georg Grabler
 
Default Perl Performance Issue

Hello,

I'm currently bitten hard by a bug which was introduced by RedHat in their perl releases. This bug has been fixed "recently", to be true in January, by RedHat.

The bug I'm talking about is a performance issue, which is caused by overloading blessed functions:


http://bugs.centos.org/view.php?id=2357



The bug fix (January 2009):
http://rhn.redhat.com/errata/RHBA-2009-0117.html

claims to fix
379791 - perl bless/overload performance problem



I wanted to ask if we can expect CentOS to release a new version of perl soon, or if we should rather tend building our own packages. I'd prefer the CentOS update, due to the reason that I don't know if we'll have the same problems with this in mod_perl as well.



Kind regards,
Georg

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Old 03-09-2009, 02:14 PM
Ralph Angenendt
 
Default Perl Performance Issue

Georg Grabler wrote:
> The bug I'm talking about is a performance issue, which is caused by
> overloading blessed functions:
> http://bugs.centos.org/view.php?id=2357
>
>
> The bug fix (January 2009):
> http://rhn.redhat.com/errata/RHBA-2009-0117.html
>
> claims to fix
> 379791 <http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=379791> - perl
> bless/overload performance problem
>
> I wanted to ask if we can expect CentOS to release a new version of perl
> soon, or if we should rather tend building our own packages. I'd prefer the
> CentOS update, due to the reason that I don't know if we'll have the same
> problems with this in mod_perl as well.

This perl package will be in CentOS 5.3. I'm just astonished that there
is another fix for that, as the "current" package in CentOS has this in
the changelog:

* Fri Aug 29 2008 Marcela Maslanova <mmaslano@redhat.com> -
* 4:5.8.8-15.el5.1
- add upstream fix for bless/overload problem (changes
31996,32018,32019, 32025) and perl-5.8.8-bug24254.patch. Without this patch had
bless poor performance. - Resolves: rhbz#460308

Cheers,

Ralph
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