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Subject: Re: [ANNOUNCE] New utility: 'trace'
From: Peter Zijlstra <peterz@infradead.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: "Ted Ts'o" <tytso@mit.edu>, Thomas Gleixner <tglx@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>,
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        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Li Zefan <lizf@cn.fujitsu.com>, Jason Baron <jbaron@redhat.com>,
        "David S. Miller" <davem@davemloft.net>,
        Christoph Hellwig <hch@lst.de>, Pekka Enberg <penberg@kernel.org>,
        Lai Jiangshan <laijs@cn.fujitsu.com>,
        Eric Dumazet <eric.dumazet@gmail.com>
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Date: Wed, 17 Nov 2010 14:38:48 +0100
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On Wed, 2010-11-17 at 14:24 +0100, Ingo Molnar wrote:
> > What about the filtering and other general features/functionality of
> > ftrace?  Is the anticipation that this will be ported over to perf?
> > What about things like blktrace?
> 
> Yeah, i'd love to see all that available. Filtering is available already on the 
> kernel perf event side and could be added as an option. 

Except I utterly detest the existing filter code.. it runs _after_ we do
all the hard work and then makes us roll back when it decides we
shouldn't output after all.

But yes, it is functional.
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