From: "Martin Bligh" <mbligh@google.com>
To: "Steven Rostedt" <rostedt@goodmis.org>
Cc: "Mathieu Desnoyers" <mathieu.desnoyers@polymtl.ca>,
"Peter Zijlstra" <a.p.zijlstra@chello.nl>,
linux-kernel@vger.kernel.org, prasad@linux.vnet.ibm.com,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
od@suse.com, "Frank Ch. Eigler" <fche@redhat.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
hch@lst.de, "David Wilder" <dwilder@us.ibm.com>,
"Tom Zanussi" <zanussi@comcast.net>
Subject: Re: [RFC PATCH] LTTng relay buffer allocation, read, write
Date: Tue, 30 Sep 2008 10:23:21 -0700 [thread overview]
Message-ID: <33307c790809301023v1b0755fbsab1bbfa9bfaad58@mail.gmail.com> (raw)
In-Reply-To: <33307c790809301022q2821ecc7iabf41eb513707e0c@mail.gmail.com>
On Tue, Sep 30, 2008 at 10:22 AM, Martin Bligh <mbligh@google.com> wrote:
>> A 4 byte dataless payload is useless anyway.
>
> Not at all convinced that's true - we used it for lots of things.
> Start and end of irq event is one frequent example.
>
> Also, in a compact mode, we can record start and end of
> syscalls like this (without parameters).
Ah, sorry, maybe I misread this. No data with no event ids, etc
is fairly useless. 4 bytes data including space to record event ids is OK.
next prev parent reply other threads:[~2008-09-30 17:23 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-27 13:40 Mathieu Desnoyers
2008-09-27 17:10 ` Peter Zijlstra
2008-09-28 8:59 ` Peter Zijlstra
2008-09-29 16:06 ` Mathieu Desnoyers
2008-09-29 15:50 ` Mathieu Desnoyers
2008-09-29 16:38 ` Steven Rostedt
2008-09-29 18:38 ` Mathieu Desnoyers
2008-09-29 19:40 ` Steven Rostedt
2008-09-29 19:54 ` Steven Rostedt
2008-09-29 17:30 ` Peter Zijlstra
2008-09-29 20:31 ` Mathieu Desnoyers
2008-09-29 21:24 ` Steven Rostedt
2008-09-30 17:22 ` Martin Bligh
2008-09-30 17:23 ` Martin Bligh [this message]
2008-09-30 18:14 ` Mathieu Desnoyers
2008-09-30 18:22 ` Steven Rostedt
2008-09-30 18:35 ` Mathieu Desnoyers
2008-09-30 19:43 ` Steven Rostedt
2008-09-30 20:01 ` Frank Ch. Eigler
2008-09-30 20:21 ` Steven Rostedt
2008-09-30 19:44 ` Martin Bligh
2008-09-30 19:54 ` Mathieu Desnoyers
2008-09-30 20:49 ` Martin Bligh
2008-09-30 20:55 ` Mathieu Desnoyers
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