[Sheflug] Re: KDE2 and Qt 2.2

[Richard <nospam [at] sheflug.co.uk>]

Dear All

Richard wrote:

> Timing buffered disk reads:  64 MB in  14.33 seconds = 4.47 MB/sec

Just tried again and it says...

Timing buffered disk reads:  64 MB in  4.85 seconds = 13.20 MB/sec

out of curiosity I tried it on my Pentium 1 based laptop with a
Toshiba hard drive.  Don't know why there's a Toshiba HD in a Compaq
laptop.  Reading that came back after 'HDPARM -c 1 -d 1 -k 1 /dev/hda'
....

Timing buffered disk reads:  64 MB in  20 seconds = 3.20 MB/sec

I suppose that this is consistent with a Pentium 1 chip and a laptop
?  I've also found when I do 'HDPARM -c 1 -d 1 -k 1 /dev/hda' I get
....

setting 32-bit I/O support flag to 1
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
setting keep_settings to 1 (on)
I/O support = 1 (32-bit)
using_dma = 0 (off)
keepsettings = 1 (on)

So, how do I get DMA to work ?  Do I belt the hard drive with a
suitably sized hammer ?

Thanks



Richard
Sheffield UK

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