[lkml]   [2004]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] speed up SATA
    Jeff Garzik <> wrote:
    > TCQ-on-write for ATA disks is yummy because you don't really know what
    > the heck the ATA disk is writing at the present time. By the time the
    > Linux disk scheduler gets around to deciding it has a nicely merged and
    > scheduled set of requests, it may be totally wrong for the disk's IO
    > scheduler. TCQ gives the disk a lot more power when the disk integrates
    > writes into its internal IO scheduling.

    Slightly beneficial for throughput, disastrous for latency.

    It appears the only way we'll ever get this gross misdesign fixed is to add
    a latency test to winbench.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 14:02    [W:0.022 / U:77.872 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site