On 10.11.07 21:32:39, Andi Kleen wrote:
> It would be really good to extract a core perfmon and start with
> that and then add stuff as it makes sense.
>
> e.g. core perfmon could be something simple like just support
> to context switch state and initialize counters in a basic way
> and perhaps get counter numbers for RDPMC in ring3 on x86[1]
Perhaps a core could provide also as much functionality so that
Perfmon can be used with an *unpatched* kernel using loadable modules?
One drawback with today's Perfmon is that it can not be used with a
vanilla kernel. But maybe such a core is by far too complex for a
first merge.
-Robert
--
Advanced Micro Devices, Inc.
Operating System Research Center
email: [email protected]
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