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    SubjectRe: [patch v2 0/8]block: An IOPS based ioscheduler
    On Mon, Jan 30, 2012 at 03:02:13PM +0800, Shaohua Li wrote:
    > An IOPS based I/O scheduler
    > Flash based storage has some different characteristics against rotate disk.
    > 1. no I/O seek.
    > 2. read and write I/O cost usually is much different.
    > 3. Time which a request takes depends on request size.
    > 4. High throughput and IOPS, low latency.

    Hi Shaohua,

    Last time we agreed that you will try to extend CFQ iops mode to take care
    of this case. I was wondering that if that idea is out of the window?

    Also what's the real workload where this is going to benefit us. I had
    struggled to run something which drove constantly deep queue depths to
    get the fairness without idling.


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      Last update: 2012-01-30 16:33    [W:0.036 / U:0.972 seconds]
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