Re: nfs server performance (netbsd-5)

[Michael van Elst <mlelstv%serpens.de@localhost>]

On Mon, Apr 05, 2010 at 09:15:44PM +0300, Jukka Marin wrote:

> Okay, thanks.  It seems the NFS client is retrying writes, sometimes
> a fragment or two is missing (so a retry is needed), but sometimes
> I can't seen anything missing and the client still retransmits the Write
> command: [RPC retransmission of #1657]V3 WRITE Call

Then the client missed the answer.

> The client is a Dreambox 7025 running linux, mount options look like this:
> 
> foo:/media on /media/hdd type nfs 
> (rw,v3,rsize=32768,wsize=32768,hard,udp,lock,addr=foo)

UDP mount and rsize/wsize=32768 is ambitious...
    
You may try to cut this down to 8192 (common) or even 1024 (avoids
fragments) or better switch to TCP if your client support this.

Greetings,
-- 
                                Michael van Elst
Internet: mlelstv%serpens.de@localhost
                                "A potential Snark may lurk in every tree."