linux-kernel - Re: [tip:core/locking] x86/smp: Move waiting on contended ticket lock out of line

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Message-ID: <20130214104353.GA25282@gmail.com>
Date:	Thu, 14 Feb 2013 11:43:53 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Rik van Riel <riel@...hat.com>, "H. Peter Anvin" <hpa@...or.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>, aquini@...hat.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Michel Lespinasse <walken@...gle.com>,
	linux-tip-commits@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [tip:core/locking] x86/smp: Move waiting on contended ticket
 lock out of line


* Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> > Eric got a 45% increase in network throughput, and I saw a 
> > factor 4x or so improvement with the semaphore test. I 
> > realize these are not "real workloads", and I will give you 
> > numbers with those once I have gathered some, on different 
> > systems.
> 
> Good. This is what I want to see.

I've put these commits aside meanwhile, until we have the 
numbers and decide one way or another.

Thanks,

	Ingo
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