[lkml]   [2004]   [Mar]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: 2.4.23aa2 (bugfixes and important VM improvements for the high end)
    > On Fri, Feb 27, 2004 at 10:10:22PM -0800, Martin J. Bligh wrote:
    >> Why is it 2.7GB with both 3:1 and 4:4 ... surely it can get bigger on
    >> 4:4 ???
    > You could use 3.7 on 4:4, but what's the point if you throw away the
    > mapping constantly by flushing the TLB?

    Normally, a bigger shm segment = higher performance. Throwing the TLB
    away means lower performance. Depending on the workload, the tradeoff
    could work out either way ... the only thing I've seen so far from
    someone who has measured it was hints that 4/4 was faster in some
    situations ... we're trying to do some more runs to confirm / deny that.
    Hopefully others will do the same ;-)


    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: 2005-03-22 14:01    [W:0.018 / U:7.812 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site