linux-kernel - Re: performance differences: "maxcpus=1" vs. "echo 0

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Message-Id: <E1JfkNq-0005Gh-00@calista.eckenfels.net>
Date:	Sun, 30 Mar 2008 00:22:46 +0100
From:	Bernd Eckenfels <ecki@...a.inka.de>
To:	linux-kernel@...r.kernel.org
Subject: Re: performance differences: "maxcpus=1" vs. "echo 0 > /sys/devices/system/cpu/cpu1/online"

In article <16336.23884.qm@...25814.mail.ukl.yahoo.com> you wrote:
> Is here any method to get the exact same behaviour of
> "maxcpus=1" with disabling the second core only

I dont have much insight, but I do remember some java performance problems
on Multi-Core with some Dell Desktops. I think they had been fixed with a
Bios upgrade. Sorry I dont remeber the chip and revision details anymore. I
just felt reminded, because MAXCPU=1 helped back then, also.

Gruss
Bernd
y
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