Re: NFS client latencies

[Ingo Molnar]

* Lee Revell <rlrevell@xxxxxxxxxxx> wrote:

> > Yes. Together with the radix tree-based sorting of dirty requests,
> > that's pretty much what I've spent most of today doing. Lee, could you
> > see how the attached combined patch changes your latency numbers?
> 
> Different code path, and the latency is worse.  See the attached ~7ms 
> trace.

could you check the -41-23 -RT kernel at the usual place:

   http://redhat.com/~mingo/realtime-preempt/

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?)

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/