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SubjectRe: IDE Harddrive Performance
From
> hda: Maxtor 93073U6, ATA DISK drive
> hdc: Maxtor 90840D6, ATA DISK drive

> /dev/hda:
> Timing buffered disk reads: 64 MB in 86.98 seconds =753.46 kB/sec
> /dev/hdc:
> Timing buffered disk reads: 64 MB in 5.63 seconds = 11.37 MB/sec

I'm in the same boat with my Maxtor 54098U8. It has been getting
progressively slower. Two weeks ago I was getting a whopping 3MB/s,
now I get:

/dev/hda:
Timing buffered disk reads: 64 MB in 115.29 seconds =568.44 kB/sec

My CDROM (ide-scsi) is faster than this!

# time dd if=/dev/scd0 of=/dev/null count=32k bs=512
real 0m8.443s

= 1.8MB/sec

The wierd thing is that I don't get any errors, but I have just
switched from emacs to vi. :-) I ran Maxtor's powermax.exe and their
90sec test hadn't finished after 20 minutes so I rebooted. :-(

Same results with 2.4.9 - 2.4.17.

-Jim

VP_IDE: VIA vt82c686a (rev 14) IDE UDMA66 controller on pci00:07.1

# hdparm /dev/hda

/dev/hda:
multcount = 16 (on)
I/O support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 4865/255/63, sectors = 78165360, start = 0
busstate = 1 (on)
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