Re: perf stat: Doubt about stall cycle support

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On 3/20/12 10:42 PM, Yipeng Huang wrote:
I am running perf stat to count hardware counters but am confused about stall
cycle support.

On running the command perf stat ./progname, I am told that stalled-cycles-
frontend and stalled-cycles-backend are not counted, but when on running perf
stat -v ./progname, I am told that stall cycles are not supported by the kernel.
So which is it?

What does perf --version show?

Should be fixed by 2cee77c4505fc581f41b44e18ffc0953b67a414c.


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