[Drbd-dev] MSG_NEW_PACKET flag?

Lars Ellenberg lars.ellenberg at linbit.com
Thu Oct 18 13:06:45 CEST 2012


On Thu, Oct 11, 2012 at 10:55:55PM +0200, Lars Marowsky-Bree wrote:
> https://lkml.org/lkml/2012/6/29/204
> 
> Could/would drbd benefit from this?

Sure.
As Andreas writes in that thread,

	The primary use case is fast Gigabit (10 or more) Ethernet connections
	with jumbo frames and switches that support them.  There, frames will go
	through unchanged and you can zero-copy receive all the time.

If the data is misaligned in the socket buffers,
we cannot effectively do zero copy receive.

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

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