I will see if I can get Perl 5.12 and an associated mod_perl up and running on the problem machine and see if the CPU utilization goes down.
Long long ago in a install far far away I did not run into this issue on FC4 which has very similar packages other than apache (2.0 rather than 2.2): Requires: httpd >= 2.0.54-0; perl >= 5.8.6-0; perl-Digest-SHA1 >= 2.10-0; mod_perl >= 2.0.1-0; On Tue, Jul 26, 2011 at 12:43 PM, Perrin Harkins <per...@elem.com> wrote: > On Mon, Jul 25, 2011 at 6:43 PM, Christopher Stanton > <christopher.stan...@codaxus.com> wrote: >> I am seeing high cpu utilization under RHEL5.6 which I don't see on >> FC14. We are talking sub 10% on FC14 vs 80% on EL5. This is on >> different hardware, but not that different. > > Well, you've changed hardware and lots of software versions, so there > are many things it could be. The only one that seems unlikely is your > code, since that didn't change. > > I would suspect the major downgrade in Perl as the culprit. You went > from 5.12 to 5.8. To test this, I suggest you install 5.12 on your > new system and compile mod_perl against it. If you don't want to > touch the system mod_perl and apache you can install your own in a > different location. I use perlbrew to try out new Perl versions > locally. > > - Perrin >
