Messages in this thread | | | Date | Tue, 13 Jan 2004 00:18:49 +0100 (CET) | From | Guennadi Liakhovetski <> | Subject | Re: 2.6.0 NFS-server low to 0 performance |
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On Thu, 8 Jan 2004, Pavel Machek wrote:
> I've seen slow machine (386sx with ne1000) that could not receive 7 full-sized packets > back-to-back. You are sending 22 full packets back-to-back. > I'd expect some of them to be (almost deterministicaly) lost, > and no progress ever made.
As you, probably, have already seen from further emails on this thread, we did find out that packets were indeed lost due to various performance reasons. And the best solution does seem to be switching to TCP-NFS, and making it the default choice for mount (where available) seems to be a very good idea.
Thanks for replying anyway.
> In same scenario, TCP detects "congestion" and works mostly okay.
Hm, as long as we are already on this - can you give me a hint / pointer how does TCP _detect_ a congestion? Does it adjust packet sizes, some other parameters? Just for the curiousity sake.
Thanks Guennadi --- Guennadi Liakhovetski
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