Re: [v2.6.26] what's brewing in x86.git for v2.6.26

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To: Ingo Molnar <mingo@...>
Cc: <hch@...>, <penberg@...>, <linux-kernel@...>, <torvalds@...>, <arjan@...>, John Levon <levon@...>, Philippe Elie <phil.el@...>
Date: Thursday, April 17, 2008 - 3:57 pm

On Thu, 17 Apr 2008 20:51:58 +0200
Ingo Molnar <mingo@elte.hu> wrote:


Well that's all good to hear but I don't know where you're getting your
information from.  In the past month and a half I've seen zero email from
Soeren and a single ftrace-related patch.

So right now I do not have enough information to understand what ftrace
does, let alone to compare it with oprofile.

And this is a problem.  I, probably more than anyone else, work with bug
reporters on kernel problems and I am not in a position to be able to
direct them to use an important new tool.  There isn't even a documentation
file I can point them at.

I'd imagine that a large number of the current kernel development team only
vaguely know of ftrace's existence, let alone how to use it and what its
advantages are.  So they just won't use it.


Well.  You know how to use it.

John, Phillippe: have you had a chance to take a look at the latest ftrace
code?

Thanks.
--
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Messages in current thread:
[v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Wed Apr 16, 4:23 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Roland Dreier, (Wed Apr 16, 4:37 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Suresh Siddha, (Wed Apr 16, 6:18 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andi Kleen, (Wed Apr 16, 4:50 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Alexander van Heukelum, (Thu Apr 17, 6:06 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andi Kleen, (Thu Apr 17, 6:51 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Alexander van Heukelum, (Thu Apr 17, 9:33 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Fri Apr 18, 4:38 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andi Kleen, (Fri Apr 18, 6:51 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Fri Apr 18, 2:27 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, David Miller, (Fri Apr 18, 2:38 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Fri Apr 18, 3:47 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Fri Apr 18, 4:00 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Christoph Hellwig, (Fri Apr 18, 4:11 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, David Miller, (Fri Apr 18, 4:18 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Fri Apr 18, 8:48 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 3:48 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 3:25 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Pekka Enberg, (Thu Apr 17, 3:45 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 4:20 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Pekka J Enberg, (Thu Apr 17, 4:32 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Pekka Enberg, (Thu Apr 17, 4:34 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 4:40 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 4:42 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Christoph Hellwig, (Thu Apr 17, 7:49 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 7:56 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 2:01 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 2:51 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Tomasz Kłoczko, (Fri Apr 18, 5:33 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Fri Apr 18, 5:42 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 3:57 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 4:18 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 4:30 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 4:40 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 5:06 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 5:18 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 5:30 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 5:53 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 5:36 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andi Kleen, (Thu Apr 17, 6:11 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 6:18 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andi Kleen, (Thu Apr 17, 6:29 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Pekka Enberg, (Thu Apr 17, 6:19 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 6:33 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Pekka Enberg, (Thu Apr 17, 6:41 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 6:38 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Pekka Enberg, (Thu Apr 17, 6:42 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Nick Piggin, (Fri Apr 18, 7:12 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Arjan van de Ven, (Thu Apr 17, 10:01 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Fri Apr 18, 8:41 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 11:26 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 5:46 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 6:06 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Vegard Nossum, (Thu Apr 17, 2:47 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 3:27 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Ingo Molnar, (Thu Apr 17, 3:35 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Vegard Nossum, (Thu Apr 17, 3:39 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 3:43 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Vegard Nossum, (Thu Apr 17, 4:39 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 4:55 pm)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, David Miller, (Thu Apr 17, 4:45 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 4:54 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 4:56 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, David Miller, (Thu Apr 17, 5:19 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 5:33 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 4:14 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Johannes Weiner, (Thu Apr 17, 6:32 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 6:50 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Avi Kivity, (Thu Apr 17, 4:57 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Christoph Hellwig, (Thu Apr 17, 7:49 am)
Re: [v2.6.26] what's brewing in x86.git for v2.6.26, Andrew Morton, (Thu Apr 17, 1:36 pm)