linux-kernel - Re: RFC: [Restatement] KBUS messaging subsystem

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Date:	Sun, 7 Aug 2011 17:47:19 +0100
From:	Tony Ibbs <tibs@...yibbs.co.uk>
To:	Tony Ibbs <tibs@...yibbs.co.uk>
Cc:	Colin Walters <walters@...bum.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jonathan Corbet <corbet@....net>,
	Florian Fainelli <florian@...nwrt.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Linux-embedded <linux-embedded@...r.kernel.org>,
	Tibs at Kynesim <tibs@...esim.co.uk>,
	Richard Watts <rrw@...esim.co.uk>
Subject: Re: RFC: [Restatement] KBUS messaging subsystem


On 3 Aug 2011, at 21:14, Tony Ibbs wrote:

> On 29 Jul 2011, at 00:58, Colin Walters wrote:
> 
>> You don't mention what your performance requirements are
>> (if any) for example.
> 
> We don't particularly have any...

My colleague says that he has previously done measurements that show
KBUS to be about 3 times slower than using shared memory and futexes,
but (of course) much simpler to use.

His implication is, I believe, that this is a respectable speed.

Tibs
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