linux-kernel - Re: [RFC] The New and Improved Logdev (now with kprobes!)

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Message-Id: <1160077160.6660.13.camel@c-67-180-230-165.hsd1.ca.comcast.net>
Date:	Thu, 05 Oct 2006 12:39:20 -0700
From:	Daniel Walker <dwalker@...sta.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Karim Yaghmour <karim@...rsys.com>,
	Andrew Morton <akpm@...l.org>,
	Chris Wright <chrisw@...s-sol.org>, fche@...hat.com,
	Tom Zanussi <zanussi@...ibm.com>
Subject: Re: [RFC] The New and Improved Logdev (now with kprobes!)

On Thu, 2006-10-05 at 11:49 -0700, Daniel Walker wrote:

> That's part of the reason for the changes that I made to the clocksource
> API . It makes it so instrumentation, with other things, can generically
> read a low level cycle clock. Like on PPC you would read the
> decrementer, and on x86 you would read the TSC . However, the
> application has no idea what it's reading.

Meant to say PowerPC uses the timebase clocksource. Sorry I've got to
many architectures swirling around.

Daniel

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