[mythtv-users] diskless frontend nfs throughput

[Thomas Börkel]

HI!

Dan Littlejohn wrote:

>     Well, I got a bit farther.  Letting the block size auto negociated
>     made the write faster (Thanks Belcampo), but the read is still
>     slow.  Is the /etc/init.d/nfsd script where you set the proc
>     max_block_size echo?  I am running pxelinux so I believe I have to
>     hard set the rsize and wsize in the pxelinux.cfg boot file, but it
>     seems to make no difference to the read speed for different values I
>     tried.
> 
>     Here is a bit more info below with letting everything auto negociate
>     with defaults including pxelinux when the root file system is
>     mounted.  Any other suggestions to try to find the read bottleneck? 

I am also using a Gentoo PXE client. I found, that you cannot set NFS
mount options as kernel parameters in pxelinux.cfg and 1024 is a hard
coded block size in the scripts from genkernel. How did you get around
this? I modified the initrd.scripts.

See: http://bugs.gentoo.org/show_bug.cgi?id=262915

This is more important since kernel 2.6.27, because from there on, NFS
remount options in /etc/fstab are not allowed to differ that much from
the initial options apparently.

Thomas