[plug] hdparm troubles

[John Knight]

I hate to ask the obvious, but is there a slave device on there? Do you know 
that your older BIOS supports these modes? If not, it'll probably be 
detrimental to performance.

"...it was brilliant, there was three up against a thousand, and boy, did we 
give those three heaps!"

>Hi all,
>
>I'm trying to optimise the hd performance on my Via C3 500MHz system, and
>wondering why I have such terrible performance with what I thought was a
>fairly good configuration.
>
>min:~# hdparm -X68 -c3 -m16 -d1 /dev/hda
>/dev/hda:
>  setting 32-bit IO_support flag to 3
>  setting multcount to 16
>  setting using_dma to 1 (on)
>  setting xfermode to 68 (UltraDMA mode4)
>  multcount    = 16 (on)
>  IO_support   =  3 (32-bit w/sync)
>  using_dma    =  1 (on)
>
>min:~# hdparm -Tt /dev/hda
>/dev/hda:
>  Timing buffer-cache reads:   192 MB in  2.03 seconds =  94.58 MB/sec
>  Timing buffered disk reads:   12 MB in  3.20 seconds =   3.75 MB/sec
>
>3.75 MB/sec ???
>
>udma is enabled in the BIOS,
>80-way cables installed,
>brand new WDC  WD800BB hd.
>What have I missed?
>
>Steve
>
>--
>VOIP-Phone - Free World Dialup number 454566 - Via 128k ISDN
>
>"Most men occasionally stumble over the truth, but most pick themselves
>up and continue on as if nothing had happened." - Winston Churchill
>
>_______________________________________________
>PLUG discussion list: plug at plug.linux.org.au
>http://mail.plug.linux.org.au/cgi-bin/mailman/listinfo/plug
>Committee e-mail: committee at plug.linux.org.au

_________________________________________________________________
Play Love Hunt to win a $9000 holiday and find love!  
http://mobilecentral.ninemsn.com.au/mclovehunt/lovehunt.aspx