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    SubjectRe: [BUG] Strange 1-second pauses during Resume-from-RAM
    On Sun, 2 December 2007 14:57:11 +0100, Ingo Molnar wrote:
    > hm, do you have CONFIG_FRAME_POINTERS=y, i.e. are the dumps reliable?

    I do. Went through 10odd runs and annotated the function right below
    mcount each time. Seems to work now.

    Trouble is that it doesn't solve my real problem at hand. Something is
    causing significant delays when writing to logfs. Core logfs code is
    not running, but may cause whatever other code is running and burning up
    all the cpu time. Wasting 100ms of "qemu-time" to write a single page
    happens fairly frequently.

    With the latency tracer the problem appears to have become worse. Now
    the loftlockup code triggers quite frequently. Which makes a bit of
    sense, as the problem is a busy CPU, rather than an idle one.

    Guess I'll try oprofile or lcov instead.


    Joern's library part 5:
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