Hi all,
I'm having some performance issues with this mb. I'm using a ata100
7400rpm ibm desktar hdd and hdparm -t /dev/hda shows:
'Timing buffered disk reads: 64 MB in 10.19 seconds = 6.28 MB/sec'
This is too slow for what I've seen from other people.
hdparm -iv /dev/hda shows:
dev/hda:
multcount = 16 (on)
I/O support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 0 (off)
keepsettings = 1 (on)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 5005/255/63, sectors = 80418240, start = 0
Model=IC35L040AVER07-0, FwRev=ER4OA44A, SerialNo=SXPTXFP7901
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=80418240
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive Supports : ATA/ATAPI-5 T13 1321D revision 1 : ATA-2 ATA-3 ATA-4
ATA-5
busstate = 1 (on)
So, dma is turned off. Logical idea would be hdparm -d1 /dev/hda, but
that gives the error message:
HDIO_SET_DMA failed: Operation not permitted
I've enabled the dma option in my kernel but it seems it's not used at
all...
Does anybody have a clue how to fix this ?
The board uses a VIA Apollo KT266A chipset.
Thanks,
Dick
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