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    SubjectRe: Oprofile : need to adjust PC by 16 bytes
    Andi Kleen a écrit :
    >>> And no, blindly subtracting 16 from IP is not a fix.
    >> Who mentioned a fix ? I am only giving more fuel to Intel guys so they
    >> hopefully can give us a working oprofile.
    > You would need to implement PEBS support to avoid that problem. But it's a big
    > task. perfmon2 implements it already.

    Thanks for the information.

    Hum, so I grabbed perfmon2 git tree, installed various tools...

    I am quite new to pfmon and tried :

    # pfmon --system-wide
    sizeof=64 44
    <press ENTER to stop session>

    Then started "tbench 8", and got a kernel panic after 6 seconds.

    I was using oprofile like this

    opcontrol --vmlinux=/path/vmlinux --start
    // doing some benchmarking...
    opreport -l vmlinux | head -n 40

    What would be a working equivalent for perfmon2 based tools ?


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      Last update: 2008-11-15 17:33    [W:0.020 / U:117.984 seconds]
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