Hi,
Kingsly John saw fit to inform me that:
>
>On Fri, 30 Mar 2001, Mithun Bhattacharya wrote:
>
> |A 40 wire cable and a 80 wire cable doesnt look any different from
> |outside other than the fact that the 80 wire one would have the
> |connectors as red and blue. A 40 wire one has all ends black. By the way
>
>They look different if you look closely enough the you can see/feel that
>the wires are thinner!!
Yes. That's true. Today I connected the 80 wire cable with the thin wires
and blue connector to my hdd.
>
> |the kernel will default to UDMA33 unless you specify different. I
>
>No... it automagically detects it and enables UMDA/66.(at least it does on
>my machine)
In my case, now what happens is, I had compiled the dma support in the
kernel and I was not using hdparm -d1 option to enable dma. Now after
putting the other able I have to use -d1 option of hdparm ? How this
happened any ideas ?
But still even after putting append="idebus=66" in lilo.conf and lilo -v I
still get the old throughput which I used to get with the old udma33. Now
my bios also shows ATA66 when booting
dmesg shows the following :
----------------------------------------------------------------------
debian:~# dmesg | grep idebus
Kernel command line: BOOT_IMAGE=debian-2.4.3 ro root=308 idebus=66
ide_setup: idebus=66
----------------------------------------------------------------------
----------------------------------------------------------------------
debian:~# hdparm /dev/hda
/dev/hda:
multcount = 0 (off)
I/O support = 1 (32-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 1 (on)
geometry = 2096/255/63, sectors = 33683328, start = 0
----------------------------------------------------------------------
----------------------------------------------------------------------
debian:~# hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 1.84 seconds = 69.57 MB/sec
Timing buffered disk reads: 64 MB in 13.88 seconds = 4.61 MB/sec
----------------------------------------------------------------------
Why still I get the same old poor throughputs ?
Thanks in advance.
Regards
--
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Rajesh Fowkar [EMAIL PROTECTED]
Kurtarkar Nagari,Bldg-C,T4, http://rajesh.computers.webjump.com
Santacruz,Ponda-Goa-403401-INDIA Powered By : Debian GNU/Linux with GRUB
Kernel 2.4.3 & Mutt 1.3.17i
IceWM 1.0.7 & KDE 2.1
"The expert at anything was once a beginner." -Hayes
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