Re: [perfmon2] Westmere ACPI vs. NUMA

[stephane e. <er...@go...>]

Hi,

Just drop the patch that change the routing if it conflicts for you.
Everything else should still work.


On Mon, Mar 28, 2011 at 1:41 PM, Zoltán Majó <zol...@in...> wrote:
> Hi Stephane,
>
>
> in your last commit
>
> a1d22713bcee9fa384fe3c7a09dbce7f1ddc4f6d
>
> to the perfmon2 kernel tree you changed the Intel Westmere interrupt
> routing. Because of this change it is not possible to use
> CONFIG_HOTPLUG_CPU. However, this variable is enabled if the kernel is
> configured with ACPI.
>
> I would like to do some measurements in a 2-processor Westmere-based
> NUMA system. For my measurements I need NUMA-awareness in Linux.
> However, Linux can get information about the NUMA topology of the
> machine only if ACPI is enabled. In conclusion, it seems that I can
> either have NUMA, or perfmon2, but not both at the same time.
>
> I need only per-core event for my measurements, and not the uncore
> events targeted by your latest patch. Do you think that if I use the
> second last version
>
> 0e3ee97afaaccc932224be1a53625e4da599d7b5
>
> of the perfmon2 kernel, I'll still get correct results for per-core events?
>
> Thanks,
>
>
> Zoltan Majo
>
>
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