In reply to Marcus Radich's message of the 16/04/00 at 10:51 +1200,


>Celeron 400
>VIA 133pro chipset motherboard
>128MB RAM
>Ultra33
>IBM 13GB IDE disk
>
>/dev/hda:
>  Timing buffer-cache reads:   128 MB in  3.11 seconds =41.16 MB/sec
>  Timing buffered disk reads:  64 MB in  8.21 seconds = 7.80 MB/sec
>
>Using Helios Lantest, I get 6MB/sec read/writes.
>
>Copying a folder of over 3000 files shows about 2MB/sec....

I don't if this is generally known, but if you're not running a very 
recent kernel (2.3.x), UDMA (33, 66) isn't enabled by default. Try 
adding the following to your rc.local script and rebooting:

        hdparm -c1 -u1 -d1 -m16 /dev/hda

On my systems (PIII/500, VIA IDE chipset, ATA/33 disk, 5400 rpm), the 
hdparm disk-read went from about 4 MB/sec to 14+ MB/sec when I did 
this; Lantest now reports file xfer times around 9000 kbytes/s.  YMMV.


-- 
Sak Wathanasin
Network Analysis Limited
178 Wainbody Ave South, Coventry CV3 6BX, UK

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