[dpdk-dev] [PATCH v2 ] ixgbe: speed up transmit

Stephen Hemminger shemming at brocade.com
Fri Dec 11 17:48:19 CET 2015


On Fri, 13 Nov 2015 08:10:13 -0800
Stephen Hemminger <stephen at networkplumber.org> wrote:

> From: Stephen Hemminger <shemming at brocade.com>
> 
> The freeing of mbuf's in ixgbe is one of the observable hot spots
> under load. Optimize it by doing bulk free of mbufs using code similar
> to i40e and fm10k.
> 
> Drop the no longer needed micro-optimization for the no refcount flag.
> 
> Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>

How come this patch got no review or comments?
It gets a visible performance gain of up to 10% in some cases.

I understand maintainers are busy with internal work, but they need
to read mailing list as well.


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