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    SubjectRe: Poor performance during disk writes
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    On Mon, 2001-12-17 at 19:36, jlm wrote:
    > On Mon, 2001-12-17 at 20:09, Reid Hekman wrote:
    >
    > > Specific kernel version, df, & hdparm output would all be helpful.
    > /usr 24> uname -a
    > Linux PC2 2.4.16 #1 Sun Dec 2 15:26:09 EST 2001 i586 unknown

    Is PCI IDE support for your chipset compiled in? PCI DMA by default?

    > non-removable ATA device, with non-removable media
    > Model Number: ST320413A
    > Serial Number: 6ED2305M
    > Firmware Revision: 3.39
    [...]
    > Capabilities:
    > LBA, IORDY(can be disabled)
    > Buffer size: 512.0kB Queue depth: 1
    > Standby timer values: spec'd by standard
    > r/w multiple sector transfer: Max = 16 Current = 16
    > DMA: mdma0 mdma1 *mdma2 udma0 udma1 udma2 udma3 udma4 udma5
    > Cycle time: min=120ns recommended=120ns

    Can you set udma on the drive instead?

    > - Dave Olson

    Regards,
    Reid

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