Re: IDE Harddrive Performance

Craig Knox
2001-12-22T21:35:39Z

On Sat, 2001-12-22 at 18:20, Jim Radford wrote:
> > 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
> /dev/hda:
> Timing buffered disk reads: 64 MB in 115.29 seconds =568.44 kB/sec
> Same results with 2.4.9 - 2.4.17.
> 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)

Haven't had any trouble 2.4.x - 2.4.17 using the same model drive.
PDC20268: (U)DMA Burst Bit ENABLED Primary MASTER Mode Secondary MASTER
hde: Maxtor 54098U8, ATA DISK drive
hdg: Maxtor 54098U8, ATA DISK drive

with 2.4.17 I get ~28.96MB/sec with hdparm -t /dev/hdx

# hdparm /dev/hde
multicount = 16 (on)
I/O support = 3 (32bit w/sync)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 4111/255/63, sectors = 66055248, start = 0