netdev - Re: [PATCH] net: add additional lock to qdisc to increase throughput

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Message-Id: <20100602.051019.180420492.davem@davemloft.net>
Date:	Wed, 02 Jun 2010 05:10:19 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	alexander.h.duyck@...el.com
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH] net: add additional lock to qdisc to increase
 throughput

From: "Duyck, Alexander H" <alexander.h.duyck@...el.com>
Date: Fri, 21 May 2010 13:04:20 -0700

> Eric Dumazet wrote:
>> Tests with following script gave a boost from ~50.000 pps to ~600.000
>> pps on a dual quad core machine (E5450 @3.00GHz), tg3 driver.
>> (A single netperf flow can reach ~800.000 pps on this platform)
>> 
>> for j in `seq 0 3`; do
>>   for i in `seq 0 7`; do
>>     netperf -H 192.168.0.1 -t UDP_STREAM -l 60 -N -T $i -- -m 6 &
>>   done
>> done
> 
> Running the same script with your patch my results went from 200Kpps to 1.2Mpps on a dual Xeon 5570.
> 
> Acked-by: Alexander Duyck <alexander.h.duyck@...el.com>

Applied, thanks guys.
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