On Tue, 28 Mar 2000, octave klaba wrote:
> Hi,
>
> a test between single ide <-> raid-1 soft ide <-> raid-1 soft scsi-2
>
> 1° PIII600/128RAM/1XIDE20.5
> 2° PIII600/128RAM/2XIDE20.5 raid-1 soft
> 3° PIII500/256/2940U2W/SCSI-2/RAID-1/IBM18Go7200
>
> -------Sequential Output-------- ---Sequential Input-- --Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
> MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> 1° 2000 9212 96.4 20354 13.9 4411 3.6 3822 35.4 22180 8.0 85.6 0.7
> 2° 2000 1727 22.4 2095 5.5 1381 34.9 3070 98.6 4320 97.8 74.8 7.3
> 3° 2000 7236 91.6 18321 15.5 8003 13.7 8347 96.7 18289 11.6 107.7 1.82
>From the CPU load on the raid-1 soft IDE test, I think seems likely that you
didn't have DMA enabled. Could that be possible ?
It doesn't make sense to have 97% CPU load when reading with 4 MB/s unless
it's done with port I/O.
--
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