Re: NFS client latencies

From: Ingo Molnar (mingo_at_elte.hu)
Date: 03/31/05

  • Next message: Prasanna S Panchamukhi: "[PATCH] Kprobes: Allow/deny probes on int3/breakpoint instruction?" 
    Date:	Thu, 31 Mar 2005 09:58:02 +0200
To: Lee Revell <rlrevell@joe-job.com>

    * Ingo Molnar <mingo@elte.hu> wrote:

    > ok, find a new latency trace attached (1.6 msecs). I generated write
    > loads, and the nfs_scan_list_dirty() latency is gone and indeed
    > nfs_scan_list() generates the worst latency - while processing 8535
    > pages in one critical section.

    here's a more complete one of 4.4 msecs. (there was a bug in the latency
    tracer that trimmed latency traces - this one is complete and shows an
    nfs_scan_list processing of 22908 pages)

            Ingo

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