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SubjectRe: [PATCH 0/2] perf stat: add per processor socket count aggregation
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Hi Stephane,

On Wed, 6 Feb 2013 15:46:00 +0100, Stephane Eranian wrote:
> This patch adds per-processor socket count aggregation
> for system-wide mode measurements. This is a useful
> mode to detect imbalance between sockets for uniform
> workloads.
>
> To enable this mode, use --aggr-socket in addition
> to -a. (system-wide). This mode can be combined with
> interval printing.
>
> The output includes the socket number and the number
> of online processors on that socket. This is useful
> to gauge the amount of aggregation.
>
> # ./perf stat -I 1000 -a --aggr-socket -e cycles sleep 2
> # time socket cpus counts events
> 1.000097680 S0 4 5,788,785 cycles
> 2.000379943 S0 4 27,361,546 cycles
> 2.001167808 S0 4 818,275 cycles

Can it be genericized to support arbitrary cpu topology like per-core,
per-numa-node or something?

Thanks,
Namhyung


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