Re: NFS client latencies
From: Ingo Molnar
Date: Thu Mar 31 2005 - 03:02:03 EST
* Ingo Molnar <mingo@xxxxxxx> wrote:
> could you check the -41-23 -RT kernel at the usual place:
> i've added Trond's radix lookup code, plus the lockbreaker patch.
> (one thing that is not covered yet is nfs_scan_list() - that still scans
> a list. Trond, is that fixable too?)
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.
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