oprofile for i586 kernels?
Dave Jones
davej at redhat.com
Sat Jun 24 03:24:30 UTC 2006
On Fri, Jun 23, 2006 at 07:32:20PM -0700, Jesse Barnes wrote:
> On Wednesday, June 21, 2006 11:14 am, Jesse Barnes wrote:
> > I use Fedora on a VIA EPIA that doesn't have support for cmov, so I'd
> > like to see things continue to work. Btw, on occasion when I
> > upgrade, yum grabs the i686 version of openssl or some other package,
> > which causes breakage. Is there a way to override my arch so that
> > yum only grabs i386 and i586 packages?
>
> It would also be nice if were oprofile enabled so I could more easily
> find out why unnecessarily slow and bloated software is so slow and
> bloated.
oprofile needs P6 style MSRs, it doesn't make sense to enable it on 586s.
The performance monitoring counters were introduced with the PPro for Intel
& athlon for AMD. The other vendors never implemented them (VIA still don't
to this day even in their 686 flavoured C3s).
Dave
--
http://www.codemonkey.org.uk
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