Messages in this thread |  | | From | Namhyung Kim <> | Subject | Re: [PATCH 0/2] perf stat: add per processor socket count aggregation | Date | Thu, 07 Feb 2013 11:31:57 +0900 |
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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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