linux-kernel - Re: [Intel-wired-lan] [net-next PATCH 26/27] igb: Update code to better handle incrementing page count

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Message-ID: <1477502512.2431.1.camel@intel.com>
Date:   Wed, 26 Oct 2016 10:21:52 -0700
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     Alexander Duyck <alexander.h.duyck@...el.com>,
        netdev@...r.kernel.org, intel-wired-lan@...ts.osuosl.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org
Cc:     davem@...emloft.net, brouer@...hat.com
Subject: Re: [Intel-wired-lan] [net-next PATCH 26/27] igb: Update code to
 better handle incrementing page count

On Tue, 2016-10-25 at 11:39 -0400, Alexander Duyck wrote:
> This patch updates the driver code so that we do bulk updates of the page
> reference count instead of just incrementing it by one reference at a
> time.
> The advantage to doing this is that we cut down on atomic operations and
> this in turn should give us a slight improvement in cycles per packet. 
> In
> addition if we eventually move this over to using build_skb the gains
> will
> be more noticeable.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
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