[lkml]   [2005]   [Oct]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: select() for delay.
    Arnd Bergmann wrote:
    > On Maandag 24 Oktober 2005 12:55, wrote:

    >>This patch improves the sys_select() execution when used for delay.

    > Please describe what aspect of the syscall is improved. Is this only
    > speeding up the execution for the delay case while slowing down
    > the normal case, or do the actual semantics improve?

    It appears to simply speed up the delay case.

    One thing that I noticed though--the patch had the following line:

    if ((n == 0) && (inp == NULL) && (outp == NULL) && (exp == NULL)) {

    Would it be enought to just do the following?

    if (n == 0) {

    Given that if any of the fd_set pointers are non-empty, "n" ought to be
    non-zero, would this be a sufficient check?

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-10-31 16:49    [W:0.020 / U:9.372 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site