lkml.org 
[lkml]   [2002]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [BENCHMARK] 2.5.47{-mm1} with contest
    Date
    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1


    >On Tue, Nov 12 2002, Giuliano Pochini wrote:
    >> On 12-Nov-2002 Andrew Morton wrote:
    >> > Con Kolivas wrote:
    >> >> io_load:
    >> >> Kernel [runs] Time CPU% Loads LCPU% Ratio
    >> >> 2.4.18 [3] 474.1 15 36 10 6.64
    >> >> 2.4.19 [3] 492.6 14 38 10 6.90
    >> >> 2.5.46 [1] 600.5 13 48 12 8.41
    >> >> 2.5.46-mm1 [5] 134.3 58 6 8 1.88
    >> >> 2.5.47 [3] 165.9 46 9 9 2.32
    >> >> 2.5.47-mm1 [5] 126.3 61 5 8 1.77
    >> >
    >> > We've increased the kernel build speed by 3.6x while decreasing the
    >> > speed at which writes are retired by 5.3x.
    >>
    >> Did the elevator change between .46 and .47 ?
    >
    >No, but the fifo_batch count (which controls how many requests are moved
    >sort list to dispatch queue) was halved. This gives lower latency, at
    >the possible cost of dimishing throughput.

    Preempt also lowered this value, and ReiserFS changes may have affected it
    further (test machine running Reiser).

    Con
    -----BEGIN PGP SIGNATURE-----
    Version: GnuPG v1.2.0 (GNU/Linux)

    iD8DBQE90Mx4F6dfvkL3i1gRAtNhAKCfIDch3dTao94+xTpEUDDYHkZFTQCdEeX9
    280PvEgXnJDt4RxByJX/pnM=
    =ct+I
    -----END PGP SIGNATURE-----

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:30    [W:0.032 / U:0.880 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site