From: Tim Bird <tim.bird@am.sony.com>
To: Josh Boyer <jwboyer@gmail.com>
Cc: vb <vb@vsbe.com>, David VomLehn <dvomlehn@cisco.com>,
linux-embedded@vger.kernel.org
Subject: Re: Some embedded topics
Date: Fri, 30 May 2008 15:36:14 -0700 [thread overview]
Message-ID: <4840815E.9020002@am.sony.com> (raw)
In-Reply-To: <20080527180200.56ffc588@vader.jdub.homelinux.org>
Josh Boyer wrote:
> lttng can trace quite a few events. Interrupts, system calls, etc.
> Might be worth a look, and it's quite well maintained against various
> kernel versions.
It's pretty heavyweight, but you could use filters to cut down on
the events traced. By default output goes to the file system, which
could be on pramfs. (Or NFS - I'm sorry I lost track of the original
request - don't know if this is an option or not.)
I'm not sure, however, that the buffers are pushed to user-space,
through the daemon, and back to the file system in an expedient manner.
I agree it might be worth a look for this use case. We use it at
Sony quite a bit and it's valuable.
-- Tim
=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Corporation of America
=============================
next prev parent reply other threads:[~2008-05-30 22:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <483C83DE.3040604@cisco.com>
[not found] ` <483C83DE.3040604-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2008-05-29 2:09 ` Some embedded topics Paul Gortmaker
[not found] ` <8bd0f97a0805271527i622a31b8t68ba24c80a2e034a@mail.gmail.com>
[not found] ` <20080527223142.GU26837@email.mot.com>
[not found] ` <20080527223142.GU26837-qbu1+ugcRq/by3iVrkZq2A@public.gmane.org>
2008-05-29 3:01 ` Rob Landley
[not found] ` <200805282201.48746.rob-VoJi6FS/r0vR7s880joybQ@public.gmane.org>
2008-05-29 4:21 ` Mike Frysinger
[not found] ` <8bd0f97a0805282121j10a99bb7ve92efc6a8dc8bbb1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-05-29 5:38 ` Wolfgang Denk
2008-05-29 17:31 ` Rob Landley
2008-05-29 18:20 ` Mike Frysinger
2008-05-29 5:34 ` Wolfgang Denk
2008-05-29 9:31 ` Geert Uytterhoeven
2008-05-30 22:59 ` Tim Bird
2008-05-30 23:20 ` Jordan Crouse
2008-05-31 0:07 ` Josh Boyer
2008-05-31 13:32 ` Geert Uytterhoeven
[not found] ` <8bd0f97a0805271535w267be51fq669def9aa424e4e7@mail.gmail.com>
[not found] ` <840404080805280740q4486f377x49c106e20d9f5dc2@mail.gmail.com>
[not found] ` <840404080805280744t351da73fk885fa7b29c05659c@mail.gmail.com>
[not found] ` <483D7355.5050803@coritel.it>
[not found] ` <483D7355.5050803-5RgZt0ZUL+KonA0d6jMUrA@public.gmane.org>
2008-05-28 15:44 ` Fwd: " Joe MacDonald
2008-05-30 22:21 ` Tim Bird
2008-06-02 0:09 ` Rob Landley
2008-06-03 8:32 ` Marco Stornelli
[not found] ` <20080527173118.12ec691b@vader.jdub.homelinux.org>
[not found] ` <f608b67d0805271537m1b07e08y5dd84f7bbd8918cf@mail.gmail.com>
[not found] ` <20080527180200.56ffc588@vader.jdub.homelinux.org>
2008-05-30 22:36 ` Tim Bird [this message]
2008-05-31 0:04 ` Josh Boyer
2008-06-01 23:52 ` Rob Landley
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