lkml.org 
[lkml]   [2007]   [Nov]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: perfmon2 merge news
    On Fri, 16 Nov 2007, Andi Kleen wrote:

    > I didn't see a clear list.

    - cross platform extensible API for configuring perf counters
    - support for multiplexed counters
    - support for virtualized 64-bit counters
    - support for PC and call graph sampling at specific intervals
    - support for reading counters not necessarily with sampling
    - taskswitch support for counters
    - API available from userland
    - ability to self-monitor: need select/poll/etc interface
    - support for PEBS, IBS and whatever other new perf monitoring
    infrastructure the vendors through at us in the future
    - low overhead: must minimize the "probe effect" of monitoring
    - low noise in measurements: cannot achieve this in userland

    permon2 has all of this and more i've probably neglected...

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

    \
     
     \ /
      Last update: 2007-11-16 18:53    [W:0.028 / U:148.752 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site