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From: David Ahern <dsahern@gmail.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Michael Rubin <mrubin@google.com>, Ingo Molnar <mingo@elte.hu>,
	David Sharp <dhsharp@google.com>,
	Vaibhav Nagarnaik <vnagarnaik@google.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Arjan van de Ven <arjan@linux.intel.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Thomas Gleixner <tglx@linutronix.de>,
	Christoph Hellwig <hch@infradead.org>,
	Arnd Bergmann <arnd@arndb.de>
Subject: Re: Fix powerTOP regression with 2.6.39-rc5
Date: Tue, 17 May 2011 07:24:46 -0600	[thread overview]
Message-ID: <4DD2771E.70106@gmail.com> (raw)
In-Reply-To: <1305631152.5456.665.camel@gandalf.stny.rr.com>



On 05/17/11 05:19, Steven Rostedt wrote:
> On Tue, 2011-05-17 at 00:15 -0700, Michael Rubin wrote:
> 
>> What is the plan for customers going forward? Is it going to involve
>> removing ftrace in favor for perf? Removing perf in favor for ftrace?
>> We love perf and don't want to see it go away either.  We tend to use
>> the two systems differently. Do customers basically have to wait a few
>> years to see not only which system wins but which ones stays on top?
> 
> My plan is:
> 
> 1) get libperf.so out for user tools to use.

libparsevent or libperf? If you really meant libperf will it be a
superset of the event parsing -- like the inclusion of the plugins infra?

David

> 
> 2) Start hacking on code again :)
> 
> But I'll make sure that this will not be a burden on Google. There's no
> reason that Google should be punished for using something that is
> mainline, and using the proper ABIs. The code in ftrace is very flexible
> and tools that use ftrace should still work even if we make internal
> changes.
> 
> I'll work closely with you to make sure that Google's tools will always
> work with future kernels.
> 
>>
>> I apologize if this is obvious to others but I am confused.
> 
> No need to apologize, it's a very confusing situation.
> 
> -- Steve
> 
> 
> --
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  reply	other threads:[~2011-05-17 13:24 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-06 20:08 Arjan van de Ven
2011-05-06 20:20 ` Steven Rostedt
2011-05-06 20:51   ` Linus Torvalds
2011-05-06 21:10     ` Steven Rostedt
2011-05-06 21:24       ` Linus Torvalds
2011-05-06 21:14     ` Steven Rostedt
2011-05-06 21:28       ` Linus Torvalds
2011-05-06 21:29     ` Arjan van de Ven
2011-05-06 21:57       ` Steven Rostedt
2011-05-07  6:58     ` Ingo Molnar
2011-05-07 10:45       ` Steven Rostedt
2011-05-07 14:44         ` Ingo Molnar
2011-05-07 17:20           ` Steven Rostedt
2011-05-07 17:59             ` Arjan van de Ven
2011-05-08 21:08               ` Frederic Weisbecker
2011-05-08 21:56                 ` Arjan van de Ven
2011-05-07 19:00             ` Ingo Molnar
2011-05-10  3:07               ` Steven Rostedt
2011-05-10  4:44                 ` Dave Chinner
2011-05-10  5:39                   ` Steven Rostedt
2011-05-10  7:36                     ` Dave Chinner
2011-05-10  7:54                 ` Ingo Molnar
2011-05-10  8:09                 ` Ingo Molnar
2011-05-10  8:32                   ` Arjan van de Ven
2011-05-10  8:44                     ` Ingo Molnar
2011-05-10  9:14                       ` Pekka Enberg
2011-05-10  8:41                 ` Ingo Molnar
2011-05-10 13:06                   ` Steven Rostedt
2011-05-11 21:51                     ` Ingo Molnar
2011-05-11 22:36                       ` Steven Rostedt
2011-05-17  7:15                       ` Michael Rubin
2011-05-17 11:19                         ` Steven Rostedt
2011-05-17 13:24                           ` David Ahern [this message]
2011-05-17 13:27                             ` Steven Rostedt
2011-05-17 13:30                               ` Ingo Molnar
2011-05-10  8:47                 ` Ingo Molnar
2011-05-10 10:33                   ` Steven Rostedt
2011-05-10 19:13                     ` David Sharp
2011-05-09 23:37             ` David Sharp
2011-05-10  7:39               ` Ingo Molnar

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