linux-kernel - Re: [RFC] smt-aware rt load balancer

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Date:	Thu, 4 Sep 2014 17:40:50 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Roman Gushchin <klamm@...dex-team.ru>
Cc:	mingo@...hat.com, Kirill Tkhai <tkhai@...dex.ru>,
	LKML <linux-kernel@...r.kernel.org>,
	Stanislav Fomichev <stfomichev@...dex-team.ru>
Subject: Re: [RFC] smt-aware rt load balancer

On Thu, Sep 04, 2014 at 04:20:06PM +0400, Roman Gushchin wrote:
> Hello!
> 
> We had an earlier discussion about using real-time policies on modern CPUs
> for cpu-bound tasks with "near real-time" execution time expectations (like front-end servers):
> https://lkml.org/lkml/2014/4/24/602 .
> 
> I sad, that I had a prototype of real-time load balancer (called smart), that performs well in this case.
> 
> Now it's ready to be published.
> 
> The patch set on top of the 3.10.x branch can be found here:
> https://github.com/yandex/smart .
> 
> It's stable.
> We use them in production for a couple of months on more than thousand machines.
> We get noticeable performance increase for many projects with different load patterns
> (up to 10-15% in both RPS and latency).
> 
> Any feedback, comments, questions are welcome!

-ENOPATCH
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