Zero Copy writes for Samba
skuhn at qca.qualcomm.com
Wed Feb 26 14:59:35 MST 2014
Ok. Thank you for the reference.
From: Jeremy Allison [jra at samba.org]
Sent: Wednesday, February 26, 2014 1:51 PM
To: Kuhn, Steven
Cc: Jeremy Allison; samba-technical at samba.org
Subject: Re: Zero Copy writes for Samba
On Wed, Feb 26, 2014 at 09:48:16PM +0000, Kuhn, Steven wrote:
> Hi Jeremy,
> Thank you for your reply.
> I do not know if I have a modified kernel that fixes splice performance. I have the OpenWrt 3.4.0 distribution.
Then you don't :-).
> What should I look for in the kernel to see if it has the modifications you are referring to?
No distribution has such a modified splice. Some
NAS products have experimented with this, but
no fixes have ever been deemed good or safe
enough to go into the mainline kernel.
> Can you point me to the kernel modifications to add myself?
There aren't any, that's the point :-(.
You're better off without splice. Use the aio_pthread
VFS module instead.
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