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To: Charles Henrich <henrich@crh.cl.msu.edu>
cc: freebsd-lite2@FreeBSD.org
Subject: Re: NFS from Solaris Server 
In-reply-to: Your message of "Tue, 08 Oct 1996 14:34:30 -0400."
             <199610081834.OAA01563@crh.cl.msu.edu> 
Date: Wed, 09 Oct 1996 03:39:53 +0800
From: Peter Wemm <peter@spinner.dialix.com>
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[Please forgive the diversion to the Lite2 list, but there's things going
 on there that you may be interested in]

Charles Henrich wrote:
> Is Hosed, on 2.1.0 NFS will write to a sun server at a whopping 100K/sec over
> ethernet, but it goes along happily just slowly.
> 
> On 2.2-961006-SNAP we also write to NFS at a whopping 100K/sec, however in 8M
    B
> increments we write out at 600K/sec (apparently into some memory buffer??) at
> which point the buffer fills, all NFS operations are locked out on the system
> until the buffer is drained.  This takes an eternity.  How do I undo this
> buffering mechanism or make it a tunable?
> 
> Also an interesting note, a SGI to the SUN writes at 900K/sec via NFS with no
> problems.  The SGI is apparently doing:
> 
>     NFS v3          Proc 6, Proc 7 (Data)
> 
> The FreeBSD box does:
> 
>     NFS v2          Proc 8 (Data)
>             or
>     NFS v3          Proc 7 (Data)
> 
> Both are horrendously slow.  Im going to attempt to figure out what the hell
> Proc 6 is (everything I see says read, which doesnt make alot of sense).  In
> any case Im not much of a kernel hacker, so any assistance or someone with a
> solution, please raise your hand! :)
> 
> -Crh

The reason I pointed you to the lite2 list, is that Doug Rabson(sp?) has
been slaving away at incorporating the 4.4Lite2 NFS into the rest of the
FreeBSD+Lite2 kernel code.

I'm wondering if Doug would be interested in having you try the results
so far?

Cheers,
-Peter