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    SubjectRe: IDE Harddrive Performance
    On Wed, Dec 19, 2001 at 11:20:22AM -0500, Mark Hahn wrote:
    > > > I do have an Asus P2B-S Mainboard and since a week I have a Maxtor 60 GB
    >
    > that's piix-based, is it not?

    It is BX-chipset, not exactly sure if this is what is called piix. But I
    think so and found this in /proc/ide/pix

    Intel PIIX4 Ultra 33 Chipset.
    --------------- Primary Channel ---------------- Secondary Channel
    ------------- enabled enabled
    --------------- drive0 --------- drive1 -------- drive0 ---------- drive1
    ------DMA enabled: yes no yes no
    UDMA enabled: yes no yes no
    UDMA enabled: 2 X 2 X
    UDMA
    DMA
    PIO

    > > > Timing buffered disk reads: 64 MB in 5.63 seconds = 11.37 MB/sec
    >
    > should be more like 30 MB/s, so you must not have the piix controller
    > in your kernel.

    I was expecting something above 20MB/s, and thus I wondered about the low
    values. Well and when I tried first time, my computer was not really idle
    and thus I only got something around 3.5 MB/s.


    OK, what do I need to compile into my kernel to have the chipset configured
    fine? Or do I need any boot-parameters?

    Here is an excerpt from my kernel-config:

    CONFIG_IDE=y
    CONFIG_BLK_DEV_IDEDISK=y
    CONFIG_IDEDISK_MULTI_MODE=y
    CONFIG_BLK_DEV_IDECD=m
    CONFIG_BLK_DEV_IDEPCI=y
    CONFIG_IDEPCI_SHARE_IRQ=y
    CONFIG_BLK_DEV_IDEDMA_PCI=y
    CONFIG_BLK_DEV_ADMA=y
    CONFIG_BLK_DEV_OFFBOARD=y
    CONFIG_IDEDMA_PCI_AUTO=y
    CONFIG_BLK_DEV_IDEDMA=y
    CONFIG_BLK_DEV_PIIX=y
    CONFIG_PIIX_TUNING=y
    CONFIG_IDE_CHIPSETS=y
    CONFIG_IDEDMA_AUTO=y
    CONFIG_BLK_DEV_IDE_MODES=y

    everything skipped is just not set.

    Thanks, thomas
    --
    thomas@deselaers.de «<>» JabberID on request «<>» GPG/PGP key on request
    «< Unless stated otherwise everything I write is just my opinion >»
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