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From: Greg KH <gregkh@suse.de>
To: Jason Baron <jbaron@redhat.com>
Cc: mingo@elte.hu, linux-kernel@vger.kernel.org, rostedt@goodmis.org
Subject: Re: [rfc] [patch] hook tracer to dynamic debug
Date: Sat, 6 Dec 2008 21:48:40 -0800	[thread overview]
Message-ID: <20081207054840.GA20541@suse.de> (raw)
In-Reply-To: <20081205193928.GA3134@redhat.com>

On Fri, Dec 05, 2008 at 02:39:28PM -0500, Jason Baron wrote:
> hi,
> 
> Currently, the dynamic debug framework uses 'printk' for output. Here,
> i've hooked the backend of the dynamic debug framework to the tracing 
> framework. This allows the dynamic debug output to be seaprated from the
> system log, and allows for higher performance.

Is this really an issue most of the time?

I know logs can get full, but this seems like a bit of an overkill :)

> I've implemented it as a compile time option, but a user might want to
> be able to toggle b/w 'printk' and the tracer at run-time...other
> ideas? Patch is against the -tip tree...

It would have to be a run-time option if you want any distro to ever be
able to enable this in their kernels.

thanks,

greg k-h

  parent reply	other threads:[~2008-12-07  5:58 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-05 19:39 [rfc] [patch] hook tracer to dynamic debug Jason Baron
2008-12-06 13:48 ` Frederic Weisbecker
2008-12-07  5:48 ` Greg KH [this message]
2008-12-09 16:27   ` Jason Baron

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