Subject: RE: Performance Monitoring Capabilities in PowerPC (PMC
To: Dheeraj Pandey <firstname.lastname@example.org>
From: Matt Thomas <email@example.com>
Date: 02/06/2003 18:23:35
At 05:58 PM 2/6/2003, Dheeraj Pandey wrote:
> > pmc is used on arm (xscale) and i386. the pmc stuff has not yet been
> > defined for powerpc yet. We really do need it for powerpc
> > and we should figure which of the PMC counter we should support.
>I really like Linux's implementation of using /proc filesystem to get/set
>PMC. Anyhow, the set of PMC counters to support can always be refined with
>time. If we start supporting some of the basic ones, e.g.
> 6 - # of cycles spent in table search for ITLB accesses
> 7 - # of L2 hits
Sadly the MPC7410 has different enumerations. So we will need to maintain
a neutral list of events and translate to the processor specific variant
(if one exists).
Matt Thomas Internet: firstname.lastname@example.org
3am Software Foundry WWW URL: http://www.3am-software.com/bio/matt/
Cupertino, CA Disclaimer: I avow all knowledge of this message