Re: Big performance improvements seen with cifs async writepatches even over localhost

[Jeremy Allison]

On Fri, May 27, 2011 at 12:14:19AM -0500, Steve French wrote:
> Did some informal testing of Jeff Layton's cifs async_write patch set
> tonight (recent kernel). Copying 700MB sequentially was 20% faster
> from cifs kernel client to Samba 3.6 with his patches - even mounted
> over localhost (where network latency is a much smaller issue) and
> with a slow laptop drive!
> 
> I was simply doing
> 
> time dd if=/dev/zero of=/mnt/null bs=1M count=700
> 
> repeated 4 times each way (with old module, and with same code with
> Jeff's cifs async write code builtin), deleting the target file in
> between each run.
> 
> I am looking forward to trying this over GigE tomorrow to servers with
> faster disks.

Very nice ! Now where's my encrypted transport Steve ? :-) :-)

Jeremy.
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