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Date:	Thu, 15 Apr 2010 20:32:19 +0800
From:	Changli Gao <>
Cc:	Eric Dumazet <>,
	Tom Herbert <>,
	Stephen Hemminger <>,,,
	David Miller <>,
	Andi Kleen <>
Subject: Re: rps perfomance WAS(Re: rps: question

On Thu, Apr 15, 2010 at 8:10 PM, jamal <> wrote:
> On Wed, 2010-04-14 at 22:57 +0200, Eric Dumazet wrote:
>> On my Nehalem machine (16 logical cpus), its NetXtreme II BCM57711E
>> 10Gigabit has 16 queues. It might be good to use less queues according
>> to your results on some workloads, and eventually use RPS on a second
>> layering.

For historical reason, we use Linux-2.6.18. Our company have several
products with CPU Xen, P4, or i7. Some of them are SMP, Multi-Core and
Multi-Threaded. We use the similar mechanism like dynamic weighted
RPS. The total throughput is increased nearly linear with the number
of the worker threads(one worker thread per CPU).

Changli Gao(
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