linux-kernel - Re: [Patch 1/1] init: Provide a kernel start parameter to increase pid

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Message-ID: <19407.23456.469074.256306@stoffel.org>
Date:	Wed, 21 Apr 2010 16:10:08 -0400
From:	"John Stoffel" <john@...ffel.org>
To:	Hedi Berriche <hedi@....com>
Cc:	John Stoffel <john@...ffel.org>, Rik van Riel <riel@...hat.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Mike Travis <travis@....com>, Ingo Molnar <mingo@...e.hu>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jack Steiner <steiner@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Robin Holt <holt@....com>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Patch 1/1] init: Provide a kernel start parameter to increase
	pid_max v2

>>>>> "Hedi" == Hedi Berriche <hedi@....com> writes:

Hedi> On Wed, Apr 21, 2010 at 20:15 John Stoffel wrote:
Hedi> | >>>>> "Rik" == Rik van Riel <riel@...hat.com> writes:
Hedi> | 
Hedi> | Rik> That is 15 kernel threads per CPU.
Hedi> | 
Hedi> | Rik> Reducing the number of kernel threads sounds like a
Hedi> | Rik> useful thing to do.
Hedi> | 
Hedi> | Isn't that already a project? 

Hedi> Yes, thanks to Alan's probing I looked it up 

Hedi>     http://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git

Hedi> but we're definitely talking long term solution vs. something
Hedi> that can ease pain now.

It seems to me that running Linux on such a large machine is such a
specialized niche, the putting in your change to the regular kernel
isn't a near term need either.  And from the sounds of it, Tejun's
work has better long term potential.

But hey, I'm generally clueless, so take what I say with a grain of
salt.  :]  

John
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