Re: [CentOS] Re: slow Perl on CentOS 5
On 27/08/2008, at 6:57 AM, Stephen John Smoogen wrote: On Tue, Aug 26, 2008 at 3:11 PM, Scott Silva [EMAIL PROTECTED] wrote: on 8-26-2008 2:08 PM Karanbir Singh spake the following: Akemi Yagi wrote: On Mon, Aug 25, 2008 at 1:30 PM, Florin Andrei [EMAIL PROTECTED] wrote: If your Perl apps are unusually slow on CentOS 5, have a look at this blog: http://blog.vipul.net/2008/08/24/redhat-perl-what-a-tragedy/ Summary: The Upstream Vendor version of Perl has a patch to the bless[] function that makes it /extremely/ slow. Reliable info heard on the grapevine indicates 5.3 would have the fix's required. So that means about 6 months away from a fix? Unless upstream bundles a hotfix that is available for people... Such a hotfix was released in the last couple of days. A big moment for RHEL/CentOS + Perl users. :) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Re: slow Perl on CentOS 5
On Wed, Aug 27, 2008 at 6:18 AM, Mark Pryor [EMAIL PROTECTED] wrote: Anyone want to try and get this built on C5.2? ftp://download.fedora.redhat.com/pub/fedora/linux/updates/8/SRPMS/perl-5.8.8-40.fc8.src.rpm the above runs in about .4 sec, while on C5.2 it takes 8-12 seconds. Can not wait for update, I have to build Perl 5.10.0 from src for my work on CentOS 5.2. I installed this into /opt/perl for now, so there is no impact on rpm Perl package. Waiting for fixed rpm of Perl ... -- http://vnoss.org ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Re: slow Perl on CentOS 5
on 8-26-2008 2:08 PM Karanbir Singh spake the following: Akemi Yagi wrote: On Mon, Aug 25, 2008 at 1:30 PM, Florin Andrei [EMAIL PROTECTED] wrote: If your Perl apps are unusually slow on CentOS 5, have a look at this blog: http://blog.vipul.net/2008/08/24/redhat-perl-what-a-tragedy/ Summary: The Upstream Vendor version of Perl has a patch to the bless[] function that makes it /extremely/ slow. Reliable info heard on the grapevine indicates 5.3 would have the fix's required. So that means about 6 months away from a fix? -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't signature.asc Description: OpenPGP digital signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Re: slow Perl on CentOS 5
On Tue, Aug 26, 2008 at 3:11 PM, Scott Silva [EMAIL PROTECTED] wrote: on 8-26-2008 2:08 PM Karanbir Singh spake the following: Akemi Yagi wrote: On Mon, Aug 25, 2008 at 1:30 PM, Florin Andrei [EMAIL PROTECTED] wrote: If your Perl apps are unusually slow on CentOS 5, have a look at this blog: http://blog.vipul.net/2008/08/24/redhat-perl-what-a-tragedy/ Summary: The Upstream Vendor version of Perl has a patch to the bless[] function that makes it /extremely/ slow. Reliable info heard on the grapevine indicates 5.3 would have the fix's required. So that means about 6 months away from a fix? Unless upstream bundles a hotfix that is available for people... -- Stephen J Smoogen. -- BSD/GNU/Linux How far that little candle throws his beams! So shines a good deed in a naughty world. = Shakespeare. The Merchant of Venice ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Re: slow Perl on CentOS 5
hello,
--- On Tue, 8/26/08, Stephen John Smoogen [EMAIL PROTECTED] wrote:
From: Stephen John Smoogen [EMAIL PROTECTED]
Subject: Re: [CentOS] Re: slow Perl on CentOS 5
To: CentOS mailing list centos@centos.org
Date: Tuesday, August 26, 2008, 2:27 PM
On Tue, Aug 26, 2008 at 3:11 PM, Scott Silva
[EMAIL PROTECTED] wrote:
on 8-26-2008 2:08 PM Karanbir Singh spake the
following:
Akemi Yagi wrote:
On Mon, Aug 25, 2008 at 1:30 PM, Florin Andrei
[EMAIL PROTECTED]
wrote:
If your Perl apps are unusually slow on
CentOS 5, have a look at this
blog:
http://blog.vipul.net/2008/08/24/redhat-perl-what-a-tragedy/
Summary: The Upstream Vendor version of Perl
has a patch to the
bless[] function that makes it
/extremely/ slow.
Reliable info heard on the grapevine indicates 5.3
would have the fix's
required.
So that means about 6 months away from a fix?
Unless upstream bundles a hotfix that is available for
people...
Anyone want to try and get this built on C5.2?
ftp://download.fedora.redhat.com/pub/fedora/linux/updates/8/SRPMS/perl-5.8.8-40.fc8.src.rpm
I've tested it out via the fc8 live CD and the bless/overload bug is absent.
- bug test --
#!/usr/bin/perl
use overload q() = sub {};
my %h;
for (my $i=0; $i5; $i++) {
$h{$i} = bless [ ] = 'main';
print STDERR '.' if $i % 1000 == 0;
}
- end snip
the above runs in about .4 sec, while on C5.2 it takes 8-12 seconds.
--
Mark
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