From: Andi Kleen <andi@firstfloor.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Andi Kleen <andi@firstfloor.org>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jeremy Fitzhardinge <jeremy@goop.org>,
LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Miller <davem@davemloft.net>,
Roland McGrath <roland@redhat.com>,
Ulrich Drepper <drepper@redhat.com>,
Rusty Russell <rusty@rustcorp.com.au>,
Gregory Haskins <ghaskins@novell.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
"Luis Claudio R. Goncalves" <lclaudio@uudg.org>,
Clark Williams <williams@redhat.com>
Subject: Re: Efficient x86 and x86_64 NOP microbenchmarks
Date: Fri, 15 Aug 2008 23:51:21 +0200 [thread overview]
Message-ID: <20080815215121.GK19125@one.firstfloor.org> (raw)
In-Reply-To: <alpine.DEB.1.10.0808151535300.24788@gandalf.stny.rr.com>
> > The other advantage is that it would allow getting rid of
> > the frame pointer.
>
> This is the only advantage that you have.
Ok. But it's a serious one. It gives slightly more gain as your whole
complicated patching exercise.
Ok maybe it would be better to just properly fix gcc, but the problem
is it takes forever for the user base to actually start using a new
gcc :/
-Andi
next prev parent reply other threads:[~2008-08-15 21:50 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-07 18:20 [PATCH 0/5] ftrace: to kill a daemon Steven Rostedt
2008-08-07 18:20 ` [PATCH 1/5] ftrace: create __mcount_loc section Steven Rostedt
2008-08-07 18:20 ` [PATCH 2/5] ftrace: mcount call site on boot nops core Steven Rostedt
2008-08-07 18:20 ` [PATCH 3/5] ftrace: enable mcount recording for modules Steven Rostedt
2008-08-08 6:43 ` Rusty Russell
2008-08-08 12:51 ` Steven Rostedt
2008-08-07 18:20 ` [PATCH 4/5] ftrace: rebuild everything on change to FTRACE_MCOUNT_RECORD Steven Rostedt
2008-08-07 18:20 ` [PATCH 5/5] ftrace: enable using mcount recording on x86 Steven Rostedt
2008-08-07 18:47 ` [PATCH 0/5] ftrace: to kill a daemon Mathieu Desnoyers
2008-08-07 20:42 ` Steven Rostedt
2008-08-08 17:22 ` Mathieu Desnoyers
2008-08-08 17:36 ` Steven Rostedt
2008-08-08 17:46 ` Mathieu Desnoyers
2008-08-08 18:13 ` Steven Rostedt
2008-08-08 18:15 ` Peter Zijlstra
2008-08-08 18:21 ` Mathieu Desnoyers
2008-08-08 18:41 ` Steven Rostedt
2008-08-08 19:04 ` Linus Torvalds
2008-08-08 19:05 ` Mathieu Desnoyers
2008-08-08 23:38 ` Steven Rostedt
2008-08-09 0:23 ` Andi Kleen
2008-08-09 0:36 ` Steven Rostedt
2008-08-09 0:47 ` Jeremy Fitzhardinge
2008-08-09 0:51 ` Linus Torvalds
2008-08-09 1:25 ` Steven Rostedt
2008-08-13 6:31 ` Mathieu Desnoyers
2008-08-13 15:38 ` Mathieu Desnoyers
2008-08-13 17:52 ` Efficient x86 and x86_64 NOP microbenchmarks Mathieu Desnoyers
2008-08-13 18:27 ` Linus Torvalds
2008-08-13 18:41 ` Andi Kleen
2008-08-13 18:45 ` Avi Kivity
2008-08-13 18:51 ` Andi Kleen
2008-08-13 18:56 ` Avi Kivity
2008-08-13 19:30 ` Mathieu Desnoyers
2008-08-13 19:37 ` Andi Kleen
2008-08-13 20:01 ` Mathieu Desnoyers
2008-08-13 23:41 ` [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with preemptible kernel and CPU hotplug Mathieu Desnoyers
2008-08-14 0:01 ` H. Peter Anvin
2008-08-14 1:13 ` Mathieu Desnoyers
2008-08-14 1:22 ` Jeremy Fitzhardinge
2008-08-14 1:26 ` Roland McGrath
2008-08-14 1:49 ` Mathieu Desnoyers
2008-08-14 3:35 ` Jeremy Fitzhardinge
2008-08-14 15:18 ` Mathieu Desnoyers
2008-08-14 16:10 ` Linus Torvalds
2008-08-14 16:13 ` H. Peter Anvin
2008-08-14 16:58 ` Mathieu Desnoyers
2008-08-14 17:05 ` Jeremy Fitzhardinge
2008-08-14 17:30 ` Mathieu Desnoyers
2008-08-14 17:43 ` Jeremy Fitzhardinge
2008-08-14 18:37 ` H. Peter Anvin
2008-08-14 18:53 ` Mathieu Desnoyers
2008-08-14 19:29 ` Jeremy Fitzhardinge
2008-08-14 20:31 ` Mathieu Desnoyers
2008-08-14 20:39 ` H. Peter Anvin
2008-08-14 21:46 ` Jeremy Fitzhardinge
2008-08-14 22:26 ` H. Peter Anvin
2008-08-14 17:17 ` H. Peter Anvin
2008-08-14 18:09 ` Mathieu Desnoyers
2008-08-14 19:49 ` Mathieu Desnoyers
2008-08-14 17:04 ` Jeremy Fitzhardinge
2008-08-14 17:18 ` H. Peter Anvin
2008-08-14 17:28 ` Jeremy Fitzhardinge
2008-08-14 17:31 ` H. Peter Anvin
2008-08-14 17:46 ` Mathieu Desnoyers
2008-08-14 17:49 ` Jeremy Fitzhardinge
2008-08-14 17:55 ` Mathieu Desnoyers
2008-08-14 18:59 ` Gregory Haskins
2008-08-15 21:34 ` Efficient x86 and x86_64 NOP microbenchmarks Steven Rostedt
2008-08-15 21:51 ` Andi Kleen [this message]
2008-08-13 19:16 ` Mathieu Desnoyers
2008-08-09 0:51 ` [PATCH 0/5] ftrace: to kill a daemon Steven Rostedt
2008-08-09 0:53 ` Roland McGrath
2008-08-09 1:13 ` Andi Kleen
2008-08-09 1:19 ` Andi Kleen
2008-08-09 1:30 ` Steven Rostedt
2008-08-09 1:55 ` Andi Kleen
2008-08-09 2:03 ` Steven Rostedt
2008-08-09 2:23 ` Andi Kleen
2008-08-09 4:12 ` Steven Rostedt
2008-08-09 0:30 ` Steven Rostedt
2008-08-11 18:21 ` Mathieu Desnoyers
2008-08-11 19:28 ` Steven Rostedt
2008-08-08 19:08 ` Jeremy Fitzhardinge
2008-08-11 2:41 ` Rusty Russell
2008-08-11 12:33 ` Steven Rostedt
2008-08-07 21:11 ` Jeremy Fitzhardinge
2008-08-07 21:29 ` Steven Rostedt
2008-08-07 22:26 ` Roland McGrath
2008-08-08 1:21 ` Steven Rostedt
2008-08-08 1:24 ` Steven Rostedt
2008-08-08 1:56 ` Steven Rostedt
2008-08-08 7:22 ` Peter Zijlstra
2008-08-08 11:31 ` Steven Rostedt
2008-08-08 4:54 ` Sam Ravnborg
2008-08-09 9:48 ` Abhishek Sagar
2008-08-09 13:01 ` Steven Rostedt
2008-08-09 15:01 ` Abhishek Sagar
2008-08-09 15:37 ` Steven Rostedt
2008-08-09 17:14 ` Abhishek Sagar
[not found] <20080813191926.GB15547@Krystal>
2008-08-13 20:00 ` Efficient x86 and x86_64 NOP microbenchmarks Steven Rostedt
2008-08-13 20:06 ` Jeremy Fitzhardinge
2008-08-13 20:34 ` Steven Rostedt
2008-08-13 20:15 ` Andi Kleen
2008-08-13 20:21 ` Linus Torvalds
2008-08-13 20:21 ` Steven Rostedt
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