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Date:	Sun, 28 Sep 2014 17:35:30 +0300
From:	Or Gerlitz <>
To:	Eric Dumazet <>
Cc:	Alexei Starovoitov <>,
	"David S. Miller" <>,
	Jesper Dangaard Brouer <>,
	Eric Dumazet <>,
	John Fastabend <>,
	Linux Netdev List <>,
	Amir Vadai <>,
	Or Gerlitz <>,,
	Yevgeny Petrilin <>,
Subject: Re: [PATCH net-next] mlx4: optimize xmit path

On Sun, Sep 28, 2014 at 1:56 AM, Eric Dumazet <> wrote:
> From: Eric Dumazet <>
> First I implemented skb->xmit_more support, and pktgen throughput
> went from ~5Mpps to ~10Mpps.
> Then, looking closely at this driver I found false sharing problems that
> should be addressed by this patch, as my pktgen now reaches 14.7 Mpps
> on a single TX queue, with a burst factor of 8.
> So this patch in a whole permits to improve raw performance on a single
> TX queue from about 5 Mpps to 14.7 Mpps.


cool!! the team here will take a look this week. I assume we might
want to break the fifteen changes into multiple patches...

Thanks again for all your great work

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