From: Andrew Morton <akpm@linux-foundation.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: hch@infradead.org, a.p.zijlstra@chello.nl,
viro@ZenIV.linux.org.uk, mingo@elte.hu, davem@davemloft.net,
eranian@googlemail.com, linux-kernel@vger.kernel.org,
paulus@samba.org, tglx@linutronix.de
Subject: Re: [GIT PULL] Performance Counters for Linux
Date: Thu, 11 Jun 2009 12:58:04 -0700 [thread overview]
Message-ID: <20090611125804.411095e8.akpm@linux-foundation.org> (raw)
In-Reply-To: <alpine.LFD.2.01.0906111005020.3573@localhost.localdomain>
On Thu, 11 Jun 2009 10:06:55 -0700 (PDT)
Linus Torvalds <torvalds@linux-foundation.org> wrote:
> You haven't actually looked the real problem in the eye, and acknowledged
> the disaster that is oprofile. Let's give a _new_ approach a chance, and
> see if we can avoid the mistakes of yesteryear this time.
+1, metoo.
We've had numerous problems in the past where kernel developers have
shied away from altering or distributing userspace code. One effect of
this which we see again and again is that people shove presentation and
parsing code into the kernel which should have been in userspace.
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.
next prev parent reply other threads:[~2009-06-11 19:59 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-11 16:03 [GIT PULL] Performance Counters for Linux 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 [this message]
2009-06-11 20:09 ` Linus Torvalds
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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