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    SubjectRe: [rfc][patch] store-free path walking
    On Mon, Oct 12 2009, Jens Axboe wrote:
    > > Anyway, if you do get a chance to run dbench with this
    > > modification, I would appreciate seeing a profile with clal
    > > traces (my bigger system is ia64 which doesn't do perf yet).
    >
    > For what number of clients?

    Attached are call graphs for 8 and 32 clients, with your latest patch
    applied. At 8 clients, we're already at 80% spinlock time. While running
    the 32 client record, I wanted to open a file in the tmpfs mount where
    dbench was running. bash was spinning until dbench completed.

    At 32 clients, throughput is 75% of the 8 client case. And spinlock time
    there is at 90%.

    I have attached both outputs.

    --
    Jens Axboe

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