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    SubjectRe: linux-kernel-digest V1 #4149
    On Fri, 16 Jul 1999, Khimenko Victor wrote:
    > They are related, but not "related enough" ! It's exactly why LinuxThreads are
    > so slow :-(( `Any thread in the process can do the equivalent of waitpid for
    > any other thread in the process. Linux doesn't allow that; you can only wait
    > for a task that you yourself spawned (unless you are init). The workaround is
    > to make all the threads children of the "manager". It waits for them and
    > passes back exit statuses to the threads calling pthread_join.'

    Somehow I doubt that an extra IPC every time a thread exits is "the
    reason" that LinuxThreads are slow... Have any data to back that up? It
    is a kludge, but it doesn't really hurt anything too much.

    Chris Smith <cd_smith@ou.edu>


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