Subject: Re: [PATCH] sky2: skb recycling

From: Eric Dumazet <[email-masked]>
Date: Tue, 21 Oct 2008 22:15:43 +0200

Rick Jones a écrit :
> David Miller wrote:
>> From: Stephen Hemminger <[email-masked]>
>> Date: Mon, 20 Oct 2008 19:09:22 -0700
>>
>>
>>> Add support for recycling tx buffers into receive buffers.
>>> This is experimental at this point.
>>>
>>> Signed-off-by: Stephen Hemminger <[email-masked]>
>>
>>
>> Experimental, but do you have any performance data at all?
>> Just curious...
> 
> I've not had a good emily litella moment all day so I'll ask - is there 
> really that much in the way of suitable skb's which are completely free 
> after transmit completion?

Or, if we take another way, say a VOIP RTP machine sends and receive 20.000
 packets per second, each being 200 bytes long, are transmited packets
correctly sized at sendto() time to be candidates for recycling ?