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    SubjectRe: [patch] O(1) scheduler, -D1, 2.5.2-pre9, 2.4.17
    On Wed, Jan 09, 2002 at 11:38:33AM -0800, Mike Kravetz wrote:
    >
    > I just kicked off another benchmark run to compare pre10, pre10 & G1
    > patch, pre10 & Davide's patch.

    It wasn't a good night for benchmarking. I had a typo in the
    script to run chat reniced and as a result didn't collect any
    numbers for this. In addition, the kernel with Davide's patch
    failed to boot with 8 CPUs enabled. Can't see any '# CPU specific'
    mods in the patch. In any case, here is what I do have.


    --------------------------------------------------------------------
    mkbench - Time how long it takes to compile the kernel. On this
    8 CPU system we use 'make -j 8' and increase the number
    of makes run in parallel. Result is average build time in
    seconds. Lower is better.
    --------------------------------------------------------------------
    # CPUs # Makes pre10 pre10-G1 pre10-Davide
    --------------------------------------------------------------------
    2 1 189 190 185
    2 2 370 376 362
    2 4 733 726* 717
    2 6 1102 1082* 1077
    4 1 101 99 101
    4 2 199 192 195
    4 4 387 382 381
    4 6 581 551 568
    8 1 58 56 -
    8 2 110 104 -
    8 4 214 204 -
    8 6 314 305 -

    * Most likely statisticly invalid results. I run these things 3 times
    to make sure results are at lease consistent. With pre10-G1 results
    varied more than the others. Items marked with * had extremely high
    variations.

    --------------------------------------------------------------------
    Chat - VolanoMark simulator. Result is a measure of throughput.
    Higher is better.
    --------------------------------------------------------------------
    Configuration Parms # CPUs pre10 pre10-G1 pre10-Davide
    --------------------------------------------------------------------
    10 rooms, 200 messages 2 143041 107718 181556
    20 rooms, 200 messages 2 147335 147151 166048
    30 rooms, 200 messages 2 179370 190413 173135
    10 rooms, 200 messages 4 264033 287076 272597
    20 rooms, 200 messages 4 243873 241855 273219
    30 rooms, 200 messages 4 303228 301175 278513
    10 rooms, 200 messages 8 304754 306891 -
    20 rooms, 200 messages 8 241077 301414 -
    30 rooms, 200 messages 8 309485 333660 -

    --
    Mike
    -
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