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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
