Subject: Re: [debug patch] printk: Add a printk killswitch to robustify NMI
 watchdog messages
From: Peter Zijlstra <peterz@infradead.org>
To: Arne Jansen <lists@die-jansens.de>
Cc: Ingo Molnar <mingo@elte.hu>,
        Linus Torvalds <torvalds@linux-foundation.org>, mingo@redhat.com,
        hpa@zytor.com, linux-kernel@vger.kernel.org, efault@gmx.de,
        npiggin@kernel.dk, akpm@linux-foundation.org, frank.rowand@am.sony.com,
        tglx@linutronix.de, linux-tip-commits@vger.kernel.org
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Date: Mon, 06 Jun 2011 18:53:57 +0200
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On Mon, 2011-06-06 at 18:45 +0200, Arne Jansen wrote:
> > As long as it doesn't scramble the order of the messages, the delay
> > imho doesn't matter even in very printk-heavy debugging sessions.
> 
> And, as important, doesn't reduce the throughput of printk. Having only
> 100 wakeups/s sounds like the throughput is limited to 100xsizeof(ring 
> buffer). 

Right, that's another problem.. not really sure delaying all this is
going to work :/


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