knfsd -- Fedora nfs is slow

[Guolin Cheng]

Hi, all,

I got Fedora FC1 boxes running customized 2.4.25 vanlina kernel, But the nfs speed is way low.  I compared the dmesg output from original default kernel 2.4.22-1.2174.nptlsmp amd my new compiled kernel, and find the orignal default kernel reports:

....
    Installing knfsd (copyright (C) 1996 [e-mail]).

But the newly customized vanlina 2.4.25 kernel doesn't report  the above line, is that the problem?  I definitely enable nfs v2/v3 support in 2.4.25 and it works with slow speed.

Thanks a lot.
 --Guolin Cheng

[Alexander Dalloz]

Am Di, den 30.03.2004 schrieb Guolin Cheng um 04:00:
> Hi, all,
>
> I got Fedora FC1 boxes running customized 2.4.25 vanlina kernel, But the nfs speed is way low.  I compared the dmesg output from original default kernel 2.4.22-1.2174.nptlsmp amd my new compiled kernel, and find the orignal default kernel reports:
>
> ....
>    Installing knfsd (copyright (C) 1996 [e-mail]).
>
> But the newly customized vanlina 2.4.25 kernel doesn't report  the above line, is that the problem?  I definitely enable nfs v2/v3 support in 2.4.25 and it works with slow speed.
>
> Thanks a lot.
>  --Guolin Cheng

NFS running UDP would be a lot slower than newer NFS using TCP. Are you
sure you have NFS v.3 and not poor NFS v.2 with your custom kernel?
Maybe worth to run a tcpdump.

Alexander