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    SubjectRe: [patch 0/3] [Announcement] Performance Counters for Linux
    On Fri, 5 Dec 2008 07:31:31 +0100
    Ingo Molnar <mingo@elte.hu> wrote:

    > Btw., i'm curious, why would we want to do that? It skews the results
    > if the task continues executing and counters stop. To get the highest
    > quality profiling output the counters should follow the true state of
    > the task that is profiled - and events should be passed to the
    > monitoring task asynchronously. The _events_ can contain precise
    > coupled information
    > - but the counters should continue.

    btw stopping the task on counter overflow is an issue for things that
    want to self profile, like JITs


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    Arjan van de Ven Intel Open Source Technology Centre
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