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Re: MIPS performance counters

To: Chris Dearman <>
Subject: Re: MIPS performance counters
From: Ralf Baechle <>
Date: Wed, 28 Nov 2001 02:15:14 +1100
In-reply-to: <>; from on Tue, Nov 27, 2001 at 01:48:28PM +0000
References: <>
User-agent: Mutt/1.2.5i
On Tue, Nov 27, 2001 at 01:48:28PM +0000, Chris Dearman wrote:

>   A few days ago someone (sorry, I deleted the mail...) was asking about
> support for MIPS performance counters.  Some time ago I ported Mikael
> Pettersson's perfctr (
> driver to 2.2.12 and used that to profile programs running on an
> RM7000.  This driver has a reasonably generic interface and supports per
> process profiling.
>  Unless anyone can suggest a better starting point I'll have a look at
> putting this into 2.4.14.

Aside a few details I liked the proposal posted by Keith Owens.  I guess
his proposal is however more aimed at 2.5 than at 2.4 so for 2.4 your
proposal is probably a good thing.


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