Re: Additional performance data on Pavel's smb3 multi credit patch series

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Impressive!

On Sun, Jul 13, 2014 at 12:23 PM, Steve French <smfrench@xxxxxxxxx> wrote:
> Performance of Pavel's multicredit i/o SMB3 patches continues to look
> good.  Additional informal performance results below comparing cifs
> mounts with smb3 mounts (vers=3.0) with and without Pavel's patch set.
> I plan to do additional testing with large rsize/wsize (default with
> Pavel's code is 1MB).
>
> 3.16-rc4 (Ubuntu) on client.  Server is Windows 8.1.  Both VMs on same
> host (host disk is fairly fast SSD).
>
> Copy to server performance increased about 20% percent
> dd if=/dev/zero of=/mnt/targetfile bs=80M count=25
> got similar results with or without conv=fdatasync
>
> 1st run copying to empty directory, 2nd run copying over targetfile,
> (pattern repeated multiple times) averaging results
>
> New code (with Pavel's patches)
> ---------------------------------------------
> CIFS 167MB/s
> SMB3 200MB/s
>
> Existing code (without his patches)
> ------------------------------------------------
> SMB3 166MB/s
> CIFS 164.5MB/s
>
> For large file reading SMB3 performance with Pavel's patches increased
> 76% over existing SMB3 code
> dd of=/dev/null if=/mnt/targetfile bs=80M count=25
> (mounting and unmounting between attempts to avoid caching effects on
> the client)
>
> New code (with Pavel's patches)
> ---------------------------------------------
> CIFS 114MB/s
> SMB3 216MB/s
>
> Existing code (without his patches)
> ------------------------------------------------
> SMB3 123MB/s
> CIFS 110MB/s
>
> --
> Thanks,
>
> Steve
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