Re: [debug patch] printk: Add a printk killswitch to robustify NMI watchdog messages
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- Subject: Re: [debug patch] printk: Add a printk killswitch to robustify NMI watchdog messages
- From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
- Date: Mon, 06 Jun 2011 18:53:57 +0200
- Cc: Ingo Molnar <mingo@xxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, mingo@xxxxxxxxxx, hpa@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, efault@xxxxxx, npiggin@xxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, frank.rowand@xxxxxxxxxxx, tglx@xxxxxxxxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx
- In-reply-to: <4DED0423.4050904@xxxxxxxxxxxxxx>
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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