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Re: [perfmon] Re: perfmon2 TODO list
- From: Stephane Eranian <eranian at hpl dot hp dot com>
- To: William Cohen <wcohen at redhat dot com>
- Cc: Kevin Corry <kevcorry at us dot ibm dot com>, perfmon at napali dot hpl dot hp dot com, "Frank Ch. Eigler" <fche at redhat dot com>, systemtap at sources dot redhat dot com
- Date: Thu, 20 Apr 2006 16:52:04 -0700
- Subject: Re: [perfmon] Re: perfmon2 TODO list
- Address: HP Labs, 1U-17, 1501 Page Mill road, Palo Alto, CA 94304, USA.
- E-mail: eranian@hpl.hp.com
- Organisation: HP Labs Palo Alto
- References: <20060413164112.GC22490@redhat.com> <200604131233.27433.kevcorry@us.ibm.com> <4447B54C.30102@redhat.com>
- Reply-to: eranian at hpl dot hp dot com
On Thu, Apr 20, 2006 at 12:22:36PM -0400, William Cohen wrote:
> Kevin Corry wrote:
> >On Thu April 13 2006 11:41 am, Frank Ch. Eigler wrote:
> >
> >>I am a developer on the systemtap project, which Will Cohen has
> >>referred you to earlier in the discussion. I thought I would jump in
> >>just to add/refresh focus on one important perfmon requirement for
> >>systemtap: a kernel-side API.
> >
> >
> >As I mentioned in my previous email, it seems like we ought to be able to
> >do just a little reorg, and provide an in-kernel interface that looks
> >pretty much identical to the system-call interface, and actually wrapper
> >the system-calls around it. Perhaps I'll give this a shot today or
> >tomorrow with a couple of the system-calls and send in a patch and see
> >what everyone thinks.
> >
>
> Hi Kevin,
>
> Had a chance to see how hard it would be to provide an kernel-side ABI
> for perfmon2?
>
I have some preliminary code to do this. I need to try and see how it
goes. It would be for system-wide only and counting only at this point.
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--
-Stephane