linux-kernel - Re: [PATCH] Simple LTTng userspace events through debugfs

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Message-ID: <20081216194201.GE843@elte.hu>
Date:	Tue, 16 Dec 2008 20:42:01 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	ltt-dev@...ts.casi.polymtl.ca,
	Pekka Enberg <penberg@...helsinki.fi>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>,
	Linus Torvalds <torvalds@...l.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] Simple LTTng userspace events through debugfs


* Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca> wrote:

> Hi,
> 
> I looked at kmemtrace and noticed that the presence of a debugfs 
> "marker" file, which lets userspace write events into the trace buffers.
> 
> So I just did the same with a
> 
> /debugfs/ltt/write_event

you mean similar to ftrace's /debug/tracing/trace_marker ? ;-)

	Ingo
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