linux-kernel - Re: [RFC][PATCH] create workqueue threads only when needed

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Date:	Sun, 1 Feb 2009 21:19:09 -0800
From:	Arjan van de Ven <arjan@...radead.org>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [RFC][PATCH] create workqueue threads only when needed

On Mon, 02 Feb 2009 08:37:41 +1100
Benjamin Herrenschmidt <benh@...nel.crashing.org> wrote:

> 
> > I don't know, most of those I've looked on are not documented about
> > the reason for a private workqueue. I guess most of them can use
> > the usual kevent.
> 
> The main problem with kevent is that it gets clogged up.
> 
> That's were thread pools kick in ... tried using Dave Howells slow
> work ?

async function calls are pretty much the same and actually in mainlinme.
Dave Howells stuff in addition plays some extremely weird refcounting
games that I cannot imagine anyone but him needing...
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