linux-kernel - Re: [PATCH] rudimentary tracing for Classic RCU

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Message-ID: <c62985530810090444k4ee22a45p94d3b61670259d5d@mail.gmail.com>
Date:	Thu, 9 Oct 2008 13:44:38 +0200
From:	"Frédéric Weisbecker" <fweisbec@...il.com>
To:	"Andi Kleen" <andi@...stfloor.org>
Cc:	paulmck@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	mingo@...e.hu, rjw@...k.pl, dipankar@...ibm.com,
	tglx@...uxtronix.de
Subject: Re: [PATCH] rudimentary tracing for Classic RCU

2008/10/9 Andi Kleen <andi@...stfloor.org>:
>> Why don't you use the ring-buffer tracing engine?
>
> Because he doesn't actually need a ring buffer, it's a snapshot in
> time.

You have the possibility to implement a read callback to not use the
ring buffer.

> ftrace-of-bork wants to assimilate everything?

I just proposed that to unify the tracers.
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