From: Sven Geggus <sven@geggus.net>
Subject: Re: 2.4 -> 2.6 transition major performance issues
Date: Tue, 7 Jun 2005 16:37:21 +0200
Message-ID: <20050607143720.GA26081@geggus.net>
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Trond Myklebust <trond.myklebust@fys.uio.no> wrote:
>> Do you have any hint where I could start to debug this? I already made
>> shure, that NFSv3 is used in any case.
> 
>   http://nfs.sourceforge.net/#faq_b1

I already read the FAQ. rsize and wsize values of the client are already set
to 8192 and NFS over TCP did not solve the Problem either :(

As I already said, all I did change on the Server is Kernel Versions. The
whole stuff works perfect with Kernel 2.4.31 and is dead slow starting from
Kernel 2.6.9 (the first 2.6 Kernel I tried to use) to Kernel 2.6.11.10 (the
latest 2.6 Kernel I tried to use). It is slow because nfsd seems to eat all
my CPU when NFS is in heavy use.

B10 in the FAQ is exactly the Problem I seem to have, but the solutions
proposed do net seem to match my case :(

I neighter have some ancient Kernel (<= 2.4.20) nor do I have a complex
network setup (just one single switch between the client and the Server
machine).

BTW, both machines are x86-32 architecture.

Sven

-- 
"In the land of the brave and the free, we defend our freedom
with the GNU GPL" (Richard M. Stallman on www.gnu.org)

/me is giggls@ircnet, http://sven.gegg.us/ on the Web


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