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    SubjectRe: [PATCH -v2] perf, x86: try to handle unknown nmis with running perfctrs
    On 12.08.10 14:21:26, Don Zickus wrote:

    > > I was testing the patch further, it properly filters perfctr
    > > back-to-back nmis. I was able to reliable detect unknown nmis
    > > triggered by the nmi button during high load perf sessions with
    > > multiple counters, no false positives.
    > For my own curiousity, what type of high load perf sessions are you using
    > to test this. I don't know perf well enough to have it generate events
    > across multiple perfctrs.

    You put load on all cpus and then start something like the following:

    perf record -e cycles -e instructions -e cache-references \
    -e cache-misses -e branch-misses -a -- sleep 10


    Advanced Micro Devices, Inc.
    Operating System Research Center

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