[lkml]   [1999]   [Aug]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: 2.3.14 shared mem in /proc/memnfo is zero
    On Fri, 20 Aug 1999, Oleg Drokin wrote:

    >So what is the new meaning of MemShared?

    nothing. To calc such information we should do a O(N) algorithm scanning
    all the mem_map array. Now si_meminfo runs in O(1). You have less
    information but after all the shared counter is just been screwed up by
    the page-buffer cache unification of 2.3.x since most page-cache pages now
    have the page count > 1 even if they live in cache (and they are not
    mapped in userspace memory).

    I am not the author of such change but I sure agree with it. (for
    debugging you have the shared information in SYSRQ+M, SYSRQ+M runs in O(N)
    as usual of course ;).


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

     \ /
      Last update: 2005-03-22 13:53    [W:0.018 / U:2.580 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site