linux-kernel - How to reserved all the CPU time for the private computing

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Message-ID: <2234BBB33B4B2048B28E3B3ACFC9795C01B834EB@CNBEEXC007.nsn-intra.net>
Date:	Wed, 24 Mar 2010 13:58:47 +0800
From:	"Zhu, Yijun (NSN - CN/Beijing)" <yijun.zhu@....com>
To:	"LKML" <linux-kernel@...r.kernel.org>,
	<linux-arch-owner@...r.kernel.org>
Subject: How to reserved all the CPU time for the private computing

Hi All:

Thank you very much firstly.
I have send the similar questions last time and I also search solutions
in the internet.

Scenario:
multi-core cpu, but only one of cores is running linux for control
plane, while others are running the private 100% computing

Solution:
The following steps are done:
1. Add the isolcpus opinion in the kernel command
2. The init thread only can run in the control CPU
3. disable all the local interrupt in the other CPUs/cores.

Result:
The system can be up, but NOT stable. Any system call may stuck the
shell(i.e  ping/chkconfig ). 

Question:
Could some give me some help/suggestion for the next steps?

Thanks a lot.
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