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    SubjectRe: [PATCH] O17int
    Con Kolivas <> writes:

    >> When compiling from xemacs, everything is fine until the compilation
    >> is done. Then xemacs starts spinning wildly in some loop doing this:
    >> This goes on for anything from half a second to several seconds.
    >> During that time other processes, except X, are starved.
    >> I saw this first with 2.6.0-test1 vanilla, then it went away in -test2
    >> and -test3, only to show up again with O16.3int. My O16.2 kernel
    >> seems ok, which seems strange to me since the difference from O16.2 to
    >> O16.3 is very small.
    > While being a small patch, 16.2-16.3 was a large change. It removed the very
    > aggressive starvation avoidance of spin on wait waker/wakee in 16.2, which
    > clearly helped your issue.

    I have confirmed that this change introduced the problem.

    >> Any ideas?
    > Pretty sure we have another spinner. A reniced -11 batch run of top -d 1 and
    > vmstat during the spinning, and a kernel profile for that time will be
    > helpful.

    I'll try to get that.

    Måns Rullgård

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      Last update: 2005-03-22 13:47    [W:0.022 / U:27.112 seconds]
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