uhh- maybe cause you are compairing two completely different systems? try
using the same size and number of disks, same motherboard, same cpu, same
everything but the disks and controller, before you try to compair scsi to
ide...
allan
octave klaba <[EMAIL PROTECTED]> said:
> Hi,
> I made the tests between ide and scsi soft raid and I do not understand
> why scsi 2940u2w seems to be slower that ide on promise !?
>
> thanks for your help
>
> octave
>
>
> PIII500/256/SCSI-2/RAID-1/2xIBM18Go7200
> 2.2.12
> Dir Size BlkSz Thr# Read (CPU%) Write (CPU%) Seeks (CPU%)
> ----- ------ ------- ---- ------------- -------------- --------------
> /home 2000 4096 1 17.4258 8.74% 16.6533 14.2% 115.613 0.69%
> /home 2000 4096 2 12.7758 6.45% 16.5894 14.0% 118.514 0.71%
> /home 2000 4096 4 11.9168 6.09% 16.5274 14.1% 119.822 0.68%
> /home 2000 4096 8 11.5667 5.97% 16.5026 14.2% 122.879 0.71%
>
> AMD300/128/1x20Go + 2promise 66 + 1X20Go + 3x20Go
> 2.2.14 + raid 2.2.14-B1 + ide.2.2.14
> Dir Size BlkSz Thr# Read (CPU%) Write (CPU%) Seeks (CPU%)
> ----- ------ ------- ---- ------------- -------------- --------------
> /norm 2000 4096 1 22.0395 41.9% 20.6896 55.8% 100.830 0.93%
> /norm 2000 4096 2 21.8905 41.8% 20.7437 55.9% 99.6739 0.77%
> /norm 2000 4096 4 21.5580 41.3% 20.7294 56.0% 98.9896 0.75%
> /norm 2000 4096 8 21.3517 41.0% 20.6426 55.9% 99.4128 0.80%
> Dir Size BlkSz Thr# Read (CPU%) Write (CPU%) Seeks (CPU%)
> ----- ------ ------- ---- ------------- -------------- --------------
> /rai0 2000 4096 1 34.7264 97.3% 25.0024 49.9% 111.635 1.47%
> /rai0 2000 4096 2 33.1535 88.5% 25.1183 50.8% 131.618 1.46%
> /rai0 2000 4096 4 32.6545 85.9% 25.1404 51.9% 151.188 1.51%
> /rai0 2000 4096 8 32.5222 85.8% 25.1485 53.2% 167.786 1.69%
> Dir Size BlkSz Thr# Read (CPU%) Write (CPU%) Seeks (CPU%)
> ----- ------ ------- ---- ------------- -------------- --------------
> /rai1 2000 4096 1 17.4453 27.0% 12.1779 22.9% 88.4537 1.30%
> /rai1 2000 4096 2 15.7030 24.1% 12.1825 23.6% 107.810 1.50%
> /rai1 2000 4096 4 14.7477 22.5% 12.1761 24.9% 118.357 1.45%
> /rai1 2000 4096 8 14.3447 22.2% 12.1755 26.9% 125.993 1.40%
> Dir Size BlkSz Thr# Read (CPU%) Write (CPU%) Seeks (CPU%)
> ----- ------ ------- ---- ------------- -------------- --------------
> /rai5 2000 4096 1 31.2000 40.6% 13.0731 21.7% 106.626 0.77%
> /rai5 2000 4096 2 23.7602 35.1% 13.0873 21.9% 128.579 1.07%
> /rai5 2000 4096 4 20.7235 31.5% 13.0911 22.1% 147.919 1.29%
> /rai5 2000 4096 8 18.0292 28.6% 13.1051 22.3% 164.432 1.56%
>
