Messages in this thread | | | Date | Mon, 5 Aug 2002 23:46:21 -0400 (EDT) | From | Bill Davidsen <> | Subject | Re: Linux v2.4.19-rc5 |
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On 1 Aug 2002, Steven Cole wrote:
> Here are some dbench numbers, from the "for what it's worth" department. > This was done with SMP kernels, on a dual p3 box, SCSI disk, ext2. > The first column is dbench clients. The numbers are throughput > in MB/sec. The 2.5.29 kernel had a few RR-supplied smp fixes. > Looks like for this limited test, 2.4.19-rc5 holds up pretty well. > I've also ran this set of tests several times on -rc5 using ext3 > and data=writeback, and everything looks fine. > > Steven
Call me an optimist, but after all the reliability problems we had win the 2.5 series, I sort of hoped it would be better in performance, not increasingly worse. Am I misreading this? Can we fall back to the faster 2.4 code :-(
> 2.4.19-rc2 2.4.19-rc5 2.5.29 > > 1 114.616 113.402 112.668 > 2 173.234 183.829 175.148 > 3 185.995 187.411 184.63 > 4 185.447 186.891 188.199 > 6 191.115 191.439 191.787 > 8 191.962 191.551 191.53 > 10 192.984 194.036 194.923 > 12 183.847 185.73 195.328 > 16 183.609 183.439 196.224 > 20 181.519 179.956 193.681 > 24 183.509 183.387 194.09 > 28 176.04 175.832 169.326 > 32 174.583 163.09 137.815 > 36 155.04 164.154 121.861 > 40 155.37 156.028 102.014 > 44 152.546 138.171 91.6088 > 48 146.419 135.447 84.3884 > 52 139.788 125.968 89.2374 > 56 113.933 122.592 81.021 > 64 110.792 106.484 84.648 > 80 87.4692 60.6054 > 96 87.7201 57.9622 > 112 74.9503 49.468 > 128 67.2649 47.0254
-- bill davidsen <davidsen@tmr.com> CTO, TMR Associates, Inc Doing interesting things with little computers since 1979.
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