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Thread: Performance Analyzer ?

  1. #1
    corpusfugit
    Guest

    Performance Analyzer ?

    Hi Everyone,

    I was wondering there's actually a way of having a way of having a small Performance Analyzer with Olly.

    I don't want the full Vtune kind of features, but have someone find a way to set for instance a log breakpoint on each procedure of the target you're debugging ?
    I haven't found a plugin either doing it ?

    The basic would be to have like a small hit counter on each procedures within the target or specify also a procedure you'd like to watch and see how many time of spend in this procedure.

    Or do you have to look into developping a plugin for this ?
    Thanks !
    I promise that I have read the FAQ and tried to use the Search to answer my question.

  2. #2
    Super Moderator
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    i dont understand why this performance need to be analyzed
    do you have some constant that was derived from some prior experiments to multiply with

    the code that's runiing in a debugger tends to take a bit more time than usually it would take outside of debugger

    no i dont mean single stepping

    i mean the code that's executed with g, f9 , etc will still hold some latency

    i m not aware if there is a plugin of sorts for that

    but it should be possible to cook one

    some thing like

    FindAllProcedures() Findprocbegin() findProcEnd() , getproclimits etc Set conditional breaks on them and in Pausedex handler

    run timers on entry and exit

    but the least count of window timer apis arent that great i think not sure

  3. #3
    Not an Ollydbg plugin like you are looking for, but a relevant discussion worth reading...

    http://www.woodmann.com/forum/showthread.php?t=11306
    I have nothing to say and I am saying it and that is poetry as I need it.
    -John Cage

  4. #4
    corpusfugit
    Guest
    Hi Guys,
    Thanks for your answers !
    blabberer I fully agree that is not a good idea to do this for "real" performance analyser.
    What i had in mind was just to get rough pictures of time consuming functions, for instance in a dll you don't have the source for, or that kind of things.
    And i'll check the tread you're referring to xenakis
    I promise that I have read the FAQ and tried to use the Search to answer my question.

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