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SubjectDog slow IDE
Date
For some reason the my IDE is running extremely slow (which accounts for 
why this box feels so sluggish).

hdparm gives:

/dev/hda:

Model=Maxtor 53073U6, FwRev=DA6207V0, SerialNo=K607RFNC
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=60030432
IORDY=on/off, tPIO={min:120,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
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive Supports : ATA/ATAPI-4 T13 1153D revision 17 : ATA-1 ATA-2 ATA-3
ATA-4 ATA-5

/dev/hdb:

Model=MAXTOR 4K040H2, FwRev=A08.1500, SerialNo=572124112782
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4
BuffType=DualPortCache, BuffSize=2000kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78198750
IORDY=on/off, tPIO={min:120,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=no WriteCache=enabled
Drive Supports : ATA/ATAPI-5 T13 1321D revision 1 : ATA-1 ATA-2 ATA-3
ATA-4 ATA-5

Both drives claim to be using UDMA if I read the above correctly.

However:

/dev/hda:
Timing buffered disk reads: 64 MB in 16.27 seconds = 3.93 MB/sec

/dev/hdb:
Timing buffered disk reads: 64 MB in 32.99 seconds = 1.94 MB/sec

1.94MB/sec is *way* to slow for a UDMA5 hard disk surely?

Tony

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