[cifs-protocol] Problem - CIFS network throughput vs. NFS
Chuck McIntyre
chuck.mcintyre at gmail.com
Mon Feb 26 17:14:33 GMT 2007
I see the same kind of results, the attached is output form bonnie++
running on the same server against the same NAS (i.e. same raid group,
same disks, same hardware) just mounted first as CIFS and then as NFS.
I tried to do multiple tests against CIFS but it took so long to
complete that it was impossible. I will tell you that later I was able
to do more and they get the same results.
(see attached)
On 2/25/07, Lam Hoang <lam at synplicity.com> wrote:
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> Both of these mount points are on the same netapp. Client
> is a CentOS4.3 (RHEL4 u3) machine.
>
> time dd if=/dev/zero of=/nfs/.test bs=1024 count=250000 #
> real 0m27.267s
>
> time dd if=/dev/zero of=/cifs/.test bs=1024 count=250000 #
> real 11m14.242s
>
> Any thoughts or theories as to why CIFS is so much slower
> than NFS? I have tried different rsize/wsize options even
> and no difference.
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> ==
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> Have you ever received any answer for this question ?
>
> Thanks/
>
>
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>
>
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