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    SubjectRe: scalability of signal delivery for Posix Threads
    Robin Holt wrote:
    > On Mon, Nov 22, 2004 at 09:51:15AM -0600, Ray Bryant wrote:
    >
    >>We've encountered a scalability problem with signal delivery. Our
    >>application
    >>is attempting to use ITIMER_PROF to deliver one signal per clock tick to
    >>each
    >>thread of a ptrheaded (NPTL). These threads are created with CLONE_SIGHAND,
    >>so that there is a single sighand->siglock for the entire application.
    >
    >
    > Ray, can you provide a simple example application that trips this case?

    I'll do that, but it may be after the Thanksgiving holiday when I get it
    out to the mailing list. It's a minor thing, but the test we are using
    now is an OpenMP application (written in .c) and I'd propose rewriting
    it using POSIX threads without OpenMP for a more general audience

    --
    Best Regards,
    Ray
    -----------------------------------------------
    Ray Bryant
    512-453-9679 (work) 512-507-7807 (cell)
    raybry@sgi.com raybry@austin.rr.com
    The box said: "Requires Windows 98 or better",
    so I installed Linux.
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