[lkml]   [2006]   [Jan]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: differences between MADV_FREE and MADV_DONTNEED
    On Mon, Jan 16, 2006 at 09:03:00AM -0800, Suleiman Souhlal wrote:
    > Andrea Arcangeli wrote:
    > >We can also use it for the same purpose, we could add the pages to
    > >swapcache mark them dirty and zap the ptes _after_ that.
    > Wouldn't that cause the pages to get swapped out immediately?

    Not really, it would be a non blocking operation. But they could be
    swapped out shortly later (that's the whole point of DONTNEED, right?),
    once there is more memory pressure. Otherwise if they're used again, a
    minor fault will happen and it will find the swapcache uptodate in ram.
    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: 2006-01-16 18:27    [W:0.021 / U:5.784 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site