Re: Super slow NFS
I actually had the exact same problem once a while ago, and after tweaking every possible setting on the machines, I switched the hub they were using. That fixed the issue.
I'm certain that that was the first thing you checked :) If not, try switching not only the hub/switch but also the cables.
Failing that, there might be a nic issue on one machine or the other.
On Thu, Sep 06, 2001 at 02:53:39AM -0700, Anthony Lau wrote:
> Hi,
>
> I've been working on this problem for about week now.
> I have a SMC Barricade with a K7 running Debian testing/
> unstable 2.4.9 as an NFS client. The NFS server is a PPC
> 200MHz 604e running Debian testing/unstable 2.4.9 and is
> also on the Barricade. The K7 has 100Mb Netgear311 card,
> the PPC has a 10Mb old Farallon.
>
> NFS mounts take about 15 seconds, slight lag with commands,
> but extremely bad throughput. I can barely play a 192Kb OGG
> file without rebuffering. Transfer rates vary wildly from
> a few bytes/sec to about 300KB/sec. With scp over SSH, I
> get 1.2MB/s.
>
> I've read over the NFS-Howto and tried all the tips that seem
> to apply.
>
> Neither IPchains or IPtables are being used on either machine
> so it is not a TCP fragment thing. Portsentry is running on
> the client.
>
> I have tried setting rsize/wsize=1024, 2048, and 8192 with
> the same results.
>
> >From the client kern.log:
> Sep 6 02:03:09 yggdrasil kernel: nfs: server 192.168.64.115 not responding, still trying
> Sep 6 02:03:09 yggdrasil kernel: nfs: server 192.168.64.115 OK
> Sep 6 02:13:18 yggdrasil kernel: nfs: server 192.168.64.115 not responding, still trying
> Sep 6 02:13:20 yggdrasil kernel: nfs: server 192.168.64.115 OK
> Sep 6 02:13:47 yggdrasil kernel: nfs: server 192.168.64.115 not responding, still trying
> Sep 6 02:13:47 yggdrasil kernel: nfs: server 192.168.64.115 OK
>
> >From the server kern.log:
> Sep 6 00:52:05 nolandia kernel: eth0: 21143 10baseT link beat good.
> Sep 6 00:52:36 nolandia last message repeated 420 times
> Sep 6 00:53:36 nolandia last message repeated 777 times
> Sep 6 00:54:03 nolandia last message repeated 349 times
>
> These logs look wierd, but this is the first time I've
> setup NFS.
>
> nfsstat shows the client having about 5% packet retrans.
>
> Having NFS working would be nice, but I could settle for
> the hassle of scp/SSH since the throughput is about 60X
> better!
>
> Any help would be appreciated,
>
> --
> Anthony Lau
>
>
> --
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--
Adam McDaniel
Infrastructure Technology Consultant
M-Tech Mercury Information Technology, Inc.
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