On 10/28/13 10:24 AM, Ingo Molnar wrote:
The most accurate method of measurement for such single-threaded workloads is something like:taskset 0x1 perf stat -a -C 1 --repeat 20 ... this will bind your workload to CPU#0, and will do PMU measurements only there - without mixing in other CPUs or workloads.
you can drop the -a if you only want a specific CPU (-C arg). And -C in perf is cpu number starting with 0, so in your example above -C 1 means cpu1, not cpu0.
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