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From: Dean Hildebrand <seattleplus@gmail.com>
To: Yan Rui <rui.yan@gmail.com>
Cc: linux-nfs@vger.kernel.org
Subject: Re: How to increase rsize/wsize ?
Date: Tue, 22 Jun 2010 09:59:58 -0700	[thread overview]
Message-ID: <4C20EC0E.7070601@gmail.com> (raw)
In-Reply-To: <AANLkTimkEM7CPctkwYiWa-rGXDs3EHNl-hldu5fQYqRo@mail.gmail.com>

What's the value of /proc/fs/nfsd/max_block_size?  I'm not sure how it 
is set, but it does not default to the max.
Dean

On 6/21/2010 8:29 AM, Yan Rui wrote:
> Hi,
>
> I failed to mount a nfs share with a bigger rsize/wsize (in my case,
> 512K).   The biggest rsize/wsize I can get is only 256KB on my Ubuntu
> 9.10 server box.  Can anyone give me some suggestions?
>
> root@d03:~# exportfs -v
> /tmp<world>(rw,wdelay,root_squash,no_subtree_check)
>
> root@d04:~# mount -t nfs -o wsize=524288,rsize=524288 d03:/tmp /mnt/nfs
>
> root@d04:~# nfsstat -m
> /mnt/nfs from d03:/tmp
>   Flags:    rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=10.0.0.3,mountvers=3,mountproto=tcp,addr=10.0.0.3
>
> root@d03:~# uname -a
> Linux d03 2.6.31-14-server #48-Ubuntu SMP Fri Oct 16 15:07:34 UTC 2009
> x86_64 GNU/Linux
>
> root@d03:~# dpkg -l | grep nfs
> ii  nfs-common                        1:1.2.0-2ubuntu8
>   NFS support files common to client and serve
> ii  nfs-kernel-server                 1:1.2.0-2ubuntu8
>   support for NFS kernel server
>
> According to NFS-HOWTO, I have checked the kernel const
> NFSSVC_MAXBLKSIZE.  It is 1M on 2.6.31.
>
> Any comments will be appreciated!
>
> Regards,
> Rui
> --
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>    

  parent reply	other threads:[~2010-06-22 16:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-21 15:29 How to increase rsize/wsize ? Yan Rui
     [not found] ` <AANLkTimkEM7CPctkwYiWa-rGXDs3EHNl-hldu5fQYqRo-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-06-22  3:20   ` Yan Rui
2010-06-22 16:59 ` Dean Hildebrand [this message]
2010-06-23  0:32   ` Yan Rui

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