linux-kernel - Re: Inquiry: Should we remove "isolcpus= kernel boot option? (may have realtime uses)

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Message-Id: <20080604143743.b492c411.pj@sgi.com>
Date:	Wed, 4 Jun 2008 14:37:43 -0500
From:	Paul Jackson <pj@....com>
To:	Max Krasnyansky <maxk@...lcomm.com>
Cc:	andi@...stfloor.org, ioe-lkml@...eria.de, sivanich@....com,
	a.p.zijlstra@...llo.nl, linux-kernel@...r.kernel.org,
	kernel@...ivas.org, dfults@....com, devik@....cz, dino@...ibm.com,
	emmanuel.pacaud@...v-poitiers.fr, deweerdt@...e.fr, mingo@...e.hu,
	colpatch@...ibm.com, nickpiggin@...oo.com.au, rostedt@...dmis.org,
	oleg@...sign.ru, paulmck@...ibm.com, menage@...gle.com,
	rddunlap@...l.org, suresh.b.siddha@...el.com, tglx@...utronix.de
Subject: Re: Inquiry: Should we remove "isolcpus= kernel boot option? (may
 have realtime uses)

> btw Are you guys using some kind of castrated, statically linked shell to run
> that script ?

It (that init= program) is not a script.  It is its own
castrated, statically linked special purpose binary.
Once it has done its duty setting up cpusets, it then
exec's the normal init, confined to the cpuset configured
for it.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.940.382.4214
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