From: David Miller <davem@davemloft.net>
To: torvalds@linux-foundation.org
Cc: rostedt@goodmis.org, mbligh@google.com, peterz@infradead.org,
linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@linutronix.de,
akpm@linux-foundation.org, prasad@linux.vnet.ibm.com,
compudj@krystal.dyndns.org, fche@redhat.com, dwilder@us.ibm.com,
hch@lst.de, zanussi@comcast.net, srostedt@redhat.com
Subject: Re: [RFC PATCH 1/3] Unified trace buffer
Date: Wed, 24 Sep 2008 13:37:20 -0700 (PDT) [thread overview]
Message-ID: <20080924.133720.72895701.davem@davemloft.net> (raw)
In-Reply-To: <alpine.LFD.1.10.0809241313000.3265@nehalem.linux-foundation.org>
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 24 Sep 2008 13:23:47 -0700 (PDT)
> So I'd like the thing to have small headers, and be designed from the
> start to have small headers.
Small headers are good, but I'd suggest making sure there is an
"offset" or similar field in there.
Not that I want to encourage frequent changes to header layout, but if
you do need to add something, then this offset field allows you to do
so while keeping existing analysis tools working. They will just
ignore the new information in the headers, but they will still be able
to get at the data bits using the offset.
next prev parent reply other threads:[~2008-09-24 20:37 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-24 5:10 [RFC PATCH 0/3] An Unified tracing buffer (attempt) Steven Rostedt
2008-09-24 5:10 ` [RFC PATCH 1/3] Unified trace buffer Steven Rostedt
2008-09-24 15:03 ` Peter Zijlstra
2008-09-24 15:44 ` Steven Rostedt
2008-09-25 10:38 ` Ingo Molnar
2008-09-24 15:47 ` Martin Bligh
2008-09-24 16:11 ` Peter Zijlstra
2008-09-24 16:24 ` Linus Torvalds
2008-09-24 16:37 ` Steven Rostedt
2008-09-24 16:56 ` Martin Bligh
2008-09-24 17:25 ` Linus Torvalds
2008-09-24 18:01 ` Mathieu Desnoyers
2008-09-24 20:49 ` Linus Torvalds
2008-09-24 16:26 ` Steven Rostedt
2008-09-24 16:49 ` Martin Bligh
2008-09-24 17:36 ` Linus Torvalds
2008-09-24 17:49 ` Steven Rostedt
2008-09-24 20:23 ` Linus Torvalds
2008-09-24 20:37 ` David Miller [this message]
2008-09-24 20:48 ` Steven Rostedt
2008-09-24 20:51 ` Martin Bligh
2008-09-24 21:24 ` Frank Ch. Eigler
2008-09-24 21:33 ` Steven Rostedt
2008-09-24 20:47 ` Steven Rostedt
2008-09-24 21:03 ` Martin Bligh
2008-09-24 21:17 ` Steven Rostedt
2008-09-24 21:51 ` Steven Rostedt
2008-09-25 10:41 ` Peter Zijlstra
2008-09-25 14:33 ` Martin Bligh
2008-09-25 14:53 ` Peter Zijlstra
2008-09-25 15:05 ` Linus Torvalds
2008-09-25 15:25 ` Martin Bligh
2008-09-25 15:36 ` Ingo Molnar
2008-09-25 16:23 ` Mathieu Desnoyers
2008-09-25 16:32 ` Steven Rostedt
2008-09-25 17:20 ` Mathieu Desnoyers
2008-09-25 17:32 ` Steven Rostedt
2008-09-25 16:40 ` Linus Torvalds
2008-09-25 16:53 ` Steven Rostedt
2008-09-25 17:07 ` Linus Torvalds
2008-09-25 19:55 ` Ingo Molnar
2008-09-25 20:12 ` Ingo Molnar
2008-09-25 20:24 ` Linus Torvalds
2008-09-25 20:29 ` Linus Torvalds
2008-09-25 20:47 ` Steven Rostedt
2008-09-25 21:01 ` Steven Rostedt
2008-09-25 21:10 ` Ingo Molnar
2008-09-25 21:16 ` Ingo Molnar
2008-09-25 21:41 ` Ingo Molnar
2008-09-25 21:56 ` Ingo Molnar
2008-09-25 21:58 ` Linus Torvalds
2008-09-25 22:14 ` Ingo Molnar
2008-09-25 23:33 ` Linus Torvalds
2008-09-27 17:16 ` Ingo Molnar
2008-09-27 17:36 ` Ingo Molnar
2008-09-27 17:38 ` Steven Rostedt
2008-09-27 17:50 ` Peter Zijlstra
2008-09-27 18:18 ` Steven Rostedt
2008-09-27 18:42 ` Ingo Molnar
2008-09-25 20:52 ` Ingo Molnar
2008-09-25 21:14 ` Jeremy Fitzhardinge
2008-09-25 21:15 ` Martin Bligh
2008-09-25 20:29 ` Mathieu Desnoyers
2008-09-25 20:20 ` Ingo Molnar
2008-09-25 21:02 ` Jeremy Fitzhardinge
2008-09-25 21:55 ` Linus Torvalds
2008-09-25 22:25 ` Ingo Molnar
2008-09-25 22:45 ` Steven Rostedt
2008-09-25 23:04 ` Jeremy Fitzhardinge
2008-09-25 23:25 ` Ingo Molnar
2008-09-26 14:04 ` Thomas Gleixner
2008-09-25 22:39 ` Jeremy Fitzhardinge
2008-09-25 22:55 ` Ingo Molnar
2008-09-26 1:17 ` Jeremy Fitzhardinge
2008-09-26 1:27 ` Steven Rostedt
2008-09-26 1:49 ` Jeremy Fitzhardinge
2008-09-25 22:59 ` Steven Rostedt
2008-09-26 1:27 ` Jeremy Fitzhardinge
2008-09-26 1:35 ` Steven Rostedt
2008-09-26 2:07 ` Jeremy Fitzhardinge
2008-09-26 2:25 ` Steven Rostedt
2008-09-26 5:31 ` Jeremy Fitzhardinge
2008-09-26 10:41 ` Steven Rostedt
2008-09-25 15:26 ` Steven Rostedt
2008-09-25 17:22 ` Linus Torvalds
2008-09-25 17:39 ` Steven Rostedt
2008-09-25 18:14 ` Linus Torvalds
2008-09-25 15:20 ` Steven Rostedt
2008-09-24 17:54 ` Martin Bligh
2008-09-24 18:04 ` Martin Bligh
2008-09-24 20:39 ` Linus Torvalds
2008-09-24 20:56 ` Martin Bligh
2008-09-24 21:08 ` Steven Rostedt
2008-09-24 20:30 ` Linus Torvalds
2008-09-24 20:53 ` Mathieu Desnoyers
2008-09-24 22:28 ` Linus Torvalds
2008-09-24 22:41 ` Linus Torvalds
2008-09-25 17:15 ` Mathieu Desnoyers
2008-09-25 17:29 ` Linus Torvalds
2008-09-25 17:42 ` Mathieu Desnoyers
2008-09-25 16:37 ` Mathieu Desnoyers
2008-09-25 16:49 ` Linus Torvalds
2008-09-25 17:02 ` Steven Rostedt
2008-09-24 16:13 ` Mathieu Desnoyers
2008-09-24 16:31 ` Steven Rostedt
2008-09-24 16:39 ` Peter Zijlstra
2008-09-24 16:51 ` Mathieu Desnoyers
2008-09-24 5:10 ` [RFC PATCH 2/3] ftrace: combine some print formating Steven Rostedt
2008-09-24 5:10 ` [RFC PATCH 3/3] ftrace: hack in the ring buffer Steven Rostedt
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