From: Linus Torvalds <torvalds@linux-foundation.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: hch@infradead.org, a.p.zijlstra@chello.nl,
Al Viro <viro@ZenIV.linux.org.uk>, Ingo Molnar <mingo@elte.hu>,
"David S. Miller" <davem@davemloft.net>,
eranian@googlemail.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
paulus@samba.org, tglx@linutronix.de
Subject: Re: [GIT PULL] Performance Counters for Linux
Date: Thu, 11 Jun 2009 13:09:58 -0700 (PDT) [thread overview]
Message-ID: <alpine.LFD.2.01.0906111305470.3535@localhost.localdomain> (raw)
In-Reply-To: <20090611125804.411095e8.akpm@linux-foundation.org>
On Thu, 11 Jun 2009, Andrew Morton wrote:
>
> It could be that shipping userspace code in the kernel bundle will
> improve that situation. So let's give it a try. If it turns out to be
> good, let's do it again. If it turns out to be bad, let's move perf
> out of the kernel tree and not do it again.
Exactly. Right now, I use the oprofile experience as a reason for why we
should try to do this. But hey, who knows, in one year, maybe people will
use _this_ experience as a reason why we should never do it again.
We just don't know yet. But that's no reason not to try. Either way, we'll
hopefully learn something.
Or to quote Edison:
"I have not failed 700 times. I have not failed once. I have succeeded in
proving that those 700 ways will not work. When I have eliminated the
ways that will not work, I will find the way that will work."
Linus
next prev parent reply other threads:[~2009-06-11 20:10 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-11 16:03 Ingo Molnar
2009-06-11 16:17 ` Christoph Hellwig
2009-06-11 16:26 ` Linus Torvalds
2009-06-11 16:34 ` Marcel Holtmann
2009-06-11 16:38 ` Linus Torvalds
2009-06-11 16:46 ` Christoph Hellwig
2009-06-11 16:54 ` Linus Torvalds
2009-06-11 16:47 ` Marcel Holtmann
2009-06-11 18:04 ` David Newall
2009-06-11 16:52 ` Al Viro
2009-06-11 16:56 ` Peter Zijlstra
2009-06-11 17:00 ` Christoph Hellwig
2009-06-11 17:05 ` Ray Lee
2009-06-11 17:08 ` Marcel Holtmann
2009-06-11 17:12 ` Al Viro
2009-06-11 17:22 ` Ray Lee
2009-06-11 17:06 ` Linus Torvalds
2009-06-11 17:59 ` Pekka Enberg
2009-06-11 18:10 ` David Newall
2009-06-11 18:21 ` Linus Torvalds
2009-06-11 18:38 ` David Newall
2009-06-11 18:44 ` Linus Torvalds
2009-06-11 19:07 ` David Newall
2009-06-11 19:23 ` Linus Torvalds
2009-06-11 19:29 ` Linus Torvalds
2009-06-11 19:35 ` David Newall
2009-06-11 19:49 ` Linus Torvalds
2009-06-12 1:43 ` Robert Richter
2009-06-12 3:21 ` David Newall
2009-06-11 19:37 ` David Newall
2009-06-11 18:51 ` Christoph Hellwig
2009-06-11 19:05 ` Marcel Holtmann
2009-06-11 18:24 ` Martin Bligh
2009-06-11 18:34 ` Linus Torvalds
2009-06-11 20:23 ` Ingo Molnar
2009-06-11 20:49 ` Marcel Holtmann
2009-06-11 21:08 ` Sam Ravnborg
2009-06-11 21:17 ` Marcel Holtmann
2009-06-11 21:26 ` Sam Ravnborg
2009-06-11 22:18 ` Jiri Slaby
2009-06-11 22:27 ` Linus Torvalds
2009-06-11 22:38 ` Alan Cox
2009-06-11 22:49 ` Linus Torvalds
2009-06-12 7:35 ` Alan Cox
2009-06-11 23:19 ` Al Viro
2009-06-11 23:25 ` Linus Torvalds
2009-06-12 0:26 ` Al Viro
2009-06-12 2:58 ` Linus Torvalds
2009-06-12 4:05 ` Al Viro
2009-06-11 21:59 ` Steven Rostedt
2009-06-12 10:19 ` Jörn Engel
2009-06-11 21:14 ` Ingo Molnar
2009-06-28 1:19 ` Felipe Contreras
2009-06-11 19:58 ` Andrew Morton
2009-06-11 20:09 ` Linus Torvalds [this message]
2009-06-12 4:07 ` Kyle McMartin
2009-06-11 16:58 ` Linus Torvalds
2009-06-11 18:50 ` Sam Ravnborg
2009-06-15 13:41 ` Giacomo A. Catenazzi
2009-06-15 15:18 ` Sam Ravnborg
2009-06-12 9:56 ` stephane eranian
2009-06-12 10:28 ` Ingo Molnar
2009-06-18 21:58 ` stephane eranian
2009-06-22 13:10 ` Performance analysis under Linux (was: Re: [GIT PULL] Performance Counters for Linux) Ingo Molnar
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