linux-kernel - Re: [PATCH] nohz: remove "Switched to NOHz mode" debugging messages

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Message-Id: <20110823.153622.1166242430280142268.davem@davemloft.net>
Date:	Tue, 23 Aug 2011 15:36:22 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	heiko.carstens@...ibm.com
Cc:	tglx@...utronix.de, mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nohz: remove "Switched to NOHz mode" debugging messages

From: Heiko Carstens <heiko.carstens@...ibm.com>
Date: Tue, 23 Aug 2011 13:20:46 +0200

> From: Heiko Carstens <heiko.carstens@...ibm.com>
> 
> When performing cpu hotplug tests the kernel printk log buffer gets flooded
> with pointless "Switched to NOHz mode..." messages. Especially when afterwards
> analyzing a dump this might have removed more interesting stuff out of the
> buffer.
> Assuming that switching to NOHz mode simply works just remove the printk.
> 
> Signed-off-by: Heiko Carstens <heiko.carstens@...ibm.com>

These drive me nuts during bootup on my 128+ cpu machines :-/  Thanks
for taking care of this.

Acked-by: David S. Miller <davem@...emloft.net>
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