On Sun, 24 Jan 1999, Evgeny Stambulchik wrote:

> Software: kernel 2.0.36, raidtools-0.42 (I've also tried
> raidtools-19981214-0.90 with raid0145-19990108 patch, with practically
> no performance improvement). 

> md0 : active raid0 sdb3 sdc3 sdd3 3084288 blocks 256k chunks
                                                   ^^^^

could you change this to eg. 4k and retest? ... (important, for 4k to work
reasonably you'll need the newest RAID patch) 

>  Timing buffered disk reads:  64 MB in  4.46 seconds =14.35 MB/sec

(forget hdparm ... use bonnie only to test filesystem-performance.)

> "bonnie" gives similar results.

-- mingo

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