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    SubjectRe: [RFC PATCH v4] Unified trace buffer

    On Fri, 26 Sep 2008, Peter Zijlstra wrote:
    > >
    > > You could also fallback on a 2-level page array when buffer size is >
    > > 64MB. The cost is mainly a supplementary pointer dereference, but one
    > > more should not make sure a big difference overall.
    > I'm still not sure why we don't just link the pages using the page
    > frames, we don't need the random access, do we?

    Hmm, but this does make changing the buffer size much easier. I'll think
    about it and perhaps try it out. If I can tidy it up nicer than the
    ftrace code, then I may include it for v1.

    -- Steve

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      Last update: 2008-09-26 12:49    [W:0.018 / U:7.140 seconds]
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