netdev - Re: [RFC] skb_free_datagram() doing something expensive ?

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Date:	Wed, 05 Nov 2008 01:38:24 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	dada1@...mosbay.com
Cc:	netdev@...r.kernel.org, minyard@....org
Subject: Re: [RFC] skb_free_datagram() doing something expensive ?

From: Eric Dumazet <dada1@...mosbay.com>
Date: Wed, 05 Nov 2008 06:05:08 +0100

> What we can do is to avoid reclaiming space if forward_alloc is less than a page
> 
> We did that in the past, when introducing sk_mem_reclaim_partial() in commit 9993e7d313e80bdc005d09c7def91903e0068f07
> ([TCP]: Do not purge sk_forward_alloc entirely in tcp_delack_timer())
> 
> This patch gives a nice speedup on UDP, particularly for multiple
> RTP flows, where each flow has a medium trafic (say VOIP trafic)

I like it, patch applied, thanks Eric!
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