Re: [PATCH 0/5] ftrace: to kill a daemon

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To: Steven Rostedt <rostedt@...>

Cc: Andi Kleen <andi@...>, Mathieu Desnoyers <mathieu.desnoyers@...>, LKML <linux-kernel@...>, Ingo Molnar <mingo@...>, Thomas Gleixner <tglx@...>, Peter Zijlstra <peterz@...>, Andrew Morton <akpm@...>, Linus Torvalds <torvalds@...>, David Miller <davem@...>, Roland McGrath <roland@...>, Ulrich Drepper <drepper@...>, Rusty Russell <rusty@...>, Jeremy Fitzhardinge <jeremy@...>, Gregory Haskins <ghaskins@...>, Arnaldo Carvalho de Melo <acme@...>, Luis Claudio R. Goncalves <lclaudio@...>, Clark Williams <williams@...>

Subject: Re: [PATCH 0/5] ftrace: to kill a daemon

Date: Friday, August 8, 2008 - 9:19 pm

> I wish we had a true 5 byte nop. The alternative is a jmp 0, which is 
quoted text> measurable.  This is replacing mcount from a kernel compile with the -pg 

Scary usage.  How much is the difference? 

BTW a good way to get most of that back would be to not use frame 
pointers if you have them enabled ;-) Unfortunately recently
the "select FRAME_POINTER"s keep creeping all over so far too many kernels
suffer from this slow mode now :-/

-Andi
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Messages in current thread:

[PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Thu Aug 7, 2:20 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Abhishek Sagar, (Sat Aug 9, 5:48 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Sat Aug 9, 9:01 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Abhishek Sagar, (Sat Aug 9, 11:01 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Sat Aug 9, 11:37 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Abhishek Sagar, (Sat Aug 9, 1:14 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Jeremy Fitzhardinge, (Thu Aug 7, 5:11 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Thu Aug 7, 5:29 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Roland McGrath, (Thu Aug 7, 6:26 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Sam Ravnborg, (Fri Aug 8, 12:54 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Thu Aug 7, 9:21 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Peter Zijlstra, (Fri Aug 8, 3:22 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 7:31 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Thu Aug 7, 9:56 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Thu Aug 7, 9:24 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Mathieu Desnoyers, (Thu Aug 7, 2:47 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Thu Aug 7, 4:42 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Mathieu Desnoyers, (Fri Aug 8, 1:22 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 1:36 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Mathieu Desnoyers, (Fri Aug 8, 1:46 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 2:13 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Mathieu Desnoyers, (Fri Aug 8, 2:21 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 2:41 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Rusty Russell, (Sun Aug 10, 10:41 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Mon Aug 11, 8:33 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Jeremy Fitzhardinge, (Fri Aug 8, 3:08 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Linus Torvalds, (Fri Aug 8, 3:04 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Mathieu Desnoyers, (Fri Aug 8, 3:05 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 7:38 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 8:30 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Mathieu Desnoyers, (Mon Aug 11, 2:21 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Mon Aug 11, 3:28 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Andi Kleen, (Fri Aug 8, 8:23 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 8:36 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Andi Kleen, (Fri Aug 8, 9:19 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Sat Aug 9, 12:12 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 9:30 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Andi Kleen, (Fri Aug 8, 9:55 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 10:03 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Andi Kleen, (Fri Aug 8, 10:23 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Roland McGrath, (Fri Aug 8, 8:53 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Andi Kleen, (Fri Aug 8, 9:13 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Jeremy Fitzhardinge, (Fri Aug 8, 8:47 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Linus Torvalds, (Fri Aug 8, 8:51 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 9:25 pm)

Efficient x86 and x86_64 NOP microbenchmarks, Mathieu Desnoyers, (Wed Aug 13, 1:52 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Linus Torvalds, (Wed Aug 13, 2:27 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Mathieu Desnoyers, (Wed Aug 13, 3:16 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Andi Kleen, (Wed Aug 13, 2:41 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Mathieu Desnoyers, (Wed Aug 13, 3:30 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Andi Kleen, (Wed Aug 13, 3:37 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Steven Rostedt, (Fri Aug 15, 5:34 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Andi Kleen, (Fri Aug 15, 5:51 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Mathieu Desnoyers, (Wed Aug 13, 4:01 pm)

[RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with pre..., Mathieu Desnoyers, (Wed Aug 13, 7:41 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., H. Peter Anvin, (Wed Aug 13, 8:01 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Wed Aug 13, 9:22 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Wed Aug 13, 9:49 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Wed Aug 13, 11:35 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 11:18 am)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Thu Aug 14, 1:04 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., H. Peter Anvin, (Thu Aug 14, 1:18 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 1:46 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Thu Aug 14, 1:49 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 1:55 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Gregory Haskins, (Thu Aug 14, 2:59 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Thu Aug 14, 1:28 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., H. Peter Anvin, (Thu Aug 14, 1:31 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., H. Peter Anvin, (Thu Aug 14, 12:13 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 12:58 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., H. Peter Anvin, (Thu Aug 14, 1:17 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 3:49 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 2:09 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Thu Aug 14, 1:05 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 1:30 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Thu Aug 14, 1:43 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., H. Peter Anvin, (Thu Aug 14, 2:37 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 2:53 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Thu Aug 14, 3:29 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Thu Aug 14, 4:31 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Jeremy Fitzhardinge, (Thu Aug 14, 5:46 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., H. Peter Anvin, (Thu Aug 14, 6:26 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., H. Peter Anvin, (Thu Aug 14, 4:39 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Linus Torvalds, (Thu Aug 14, 12:10 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Roland McGrath, (Wed Aug 13, 9:26 pm)

Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with..., Mathieu Desnoyers, (Wed Aug 13, 9:13 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Avi Kivity, (Wed Aug 13, 2:45 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Andi Kleen, (Wed Aug 13, 2:51 pm)

Re: Efficient x86 and x86_64 NOP microbenchmarks, Avi Kivity, (Wed Aug 13, 2:56 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Mathieu Desnoyers, (Wed Aug 13, 2:31 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Mathieu Desnoyers, (Wed Aug 13, 11:38 am)

Re: [PATCH 0/5] ftrace: to kill a daemon, Steven Rostedt, (Fri Aug 8, 8:51 pm)

Re: [PATCH 0/5] ftrace: to kill a daemon, Peter Zijlstra, (Fri Aug 8, 2:15 pm)

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