CentOS - May 2008 - [CSL #351425] perfctr-enabled C5 kernel anyone?

Hi all:

We have a user who needs to do some work with PAPI, which requires the 
perfctr patch applied to the kernel proper.  Before I do that work here, 
I wanted to ask the list if anyone knows of a repo where such kernels 
are available?

Also, if anyone has gone down this route and has helpful hints, 
perspectives, horror stories, etc., I would covet that information also.

Cheers and Thanks,

Dave Thompson
UW-Madison Computer Sciences Department

On Fri, May 9, 2008 at 7:53 AM, David Thompson <thomas at cs.wisc.edu>
wrote:
> Hi all:
>
> We have a user who needs to do some work with PAPI, which requires the
> perfctr patch applied to the kernel proper.  Before I do that work here, I
> wanted to ask the list if anyone knows of a repo where such kernels are
> available?
>
> Also, if anyone has gone down this route and has helpful hints,
> perspectives, horror stories, etc., I would covet that information also.
I know almost nothing about PAPI, but just wonder if oprofile can do
the job.  If so, it would make things easier because oprofile is
included.  If you indeed need perfctr, then please refer to:

http://wiki.centos.org/HowTos/Custom_Kernel

to rebuild the kernel CentOS way.

Akemi