linux-kernel - Re: [PATCH] sched: Improve latencies under load by decreasing minimum scheduling granularity

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Message-ID: <AANLkTi=TfU6PxDce9WbcQA7tFcT0yY+FqCOUC_cbfj+e@mail.gmail.com>
Date:	Mon, 13 Sep 2010 12:44:54 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tony Lindgren <tony@...mide.com>,
	Mike Galbraith <efault@....de>
Subject: Re: [PATCH] sched: Improve latencies under load by decreasing minimum
 scheduling granularity

On Mon, Sep 13, 2010 at 11:23 AM, Ingo Molnar <mingo@...e.hu> wrote:
>
> Linus, Mathieu, you can test the granularity reduction patch via:

Hmm. It's a bit hard to judge subjective feelings, especially when you
have expectations of improvement, but yes, I think this does improve
the the interactive feel when scroll-wheeling around in firefox or
chrome.

So on the whole I'd trust the actual latency benchmark numbers more,
but I _think_ it does translate into actually feeling better too.

                          Linus
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