Message-ID: <4CE30108.7010207@linux.intel.com>
Date: Tue, 16 Nov 2010 14:09:12 -0800
From: Darren Hart <dvhart@linux.intel.com>
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To: Peter Zijlstra <peterz@infradead.org>
CC: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Arjan van de Ven <arjan@infradead.org>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Tom Zanussi <tzanussi@gmail.com>,
        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>
Subject: Re: [ANNOUNCE] New utility: 'trace'
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On 11/16/2010 02:03 PM, Peter Zijlstra wrote:
> On Tue, 2010-11-16 at 22:59 +0100, Ingo Molnar wrote:
>>
>>
>> Would you be interested in helping out with (and testing) such a more generic
>> approach?
>
> how about having perf-record open a named pipe and rewriting everything
> that comes in through that as an event and storing it in the buffer?

When I'm tracing an app or test-case, I want to be able to quickly add 
and change strings. I like the trace_printk sort of access as it avoids 
having to do a bunch of string formatting (sprintf()) calls in the test app.

-- 
Darren Hart
Yocto Linux Kernel
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