netdev - Re: [PATCH] net: Update netdev_alloc_frag to work more efficiently with TCP and GRO

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Message-ID: <1340181847.4604.840.camel@edumazet-glaptop>
Date:	Wed, 20 Jun 2012 10:44:07 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Alexander Duyck <alexander.h.duyck@...el.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	jeffrey.t.kirsher@...el.com
Subject: Re: [PATCH] net: Update netdev_alloc_frag to work more efficiently
 with TCP and GRO

On Wed, 2012-06-20 at 10:17 +0200, Eric Dumazet wrote:

> Strange, I did again benchs with order-2 allocations and got good
> results this time, but with latest net-next, maybe things have changed
> since last time I did this.
> 
> (netdev_alloc_frag(), get_page_from_freelist() and put_page() less
> prevalent in perf results)
> 

Oh well, I now remember why I abandoned this : machines dont have
infinite memory after all...

(put_page assumes order-0 page)


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