Messages in this thread | | | Subject | Re: [announce] Performance Counters for Linux, v6 | From | Peter Zijlstra <> | Date | Tue, 10 Mar 2009 11:29:12 +0100 |
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On Tue, 2009-03-10 at 10:44 +0100, Robert Richter wrote: > I agree, it is much more easier to change the in-kernel i/f. I just > wanted to emphasize the importance of this i/f. Oprofile, Perfmon and > also LPC will exist in the future too and should share the same code > base. That's what I missed in the discussion until now.
We could implement oprofile on top of lpc for those archs that have LPC support. And afaik only ia64 needs to bother with perfmon as that's the only arch that has support for it anyway.
Now, even on x86 LPC would need a little more arch support before we can fully replace oprofile, but a half-way model would be a LPC oprofile driver that uses LPC on those machines its supported on, while working to provide LPC support for the older machines.
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