From: compudj@krystal.dyndns.org (Mathieu Desnoyers)
Subject: [ltt-dev] LTTng on OMAP3 with Android
Date: Sat, 19 Jun 2010 12:15:48 -0400 [thread overview]
Message-ID: <20100619161548.GG22882@Krystal> (raw)
In-Reply-To: <4C04DA1F.3050105@ti.com>
* Hugo Dupras-XID (h-dupras at ti.com) wrote:
>
> Hello,
>
> I try to apply and use LTTng on OMAP3 with Android. I applied LTTng
> 0.124 kernel patches to the Android kernel because Android is always at
> 2.6.29 kernel version.
> LTTng seems to work correctly, I obtain data and viewing them with LTTV.
> Unfortunately the timings are just wrong and some tasks appears smaller
> than they should be. I saw a correction for the OMAP trace clock with
> the 0.134 kernel patches, but i blocked applying these patches to the
> android kernel (some files dont exit in the 2.6.29 kernel).
>
> So my question is : Is there anybody who succeed to apply LTTng on
> Android, and how ??
Have you looked at the lttng-omap tree ? It is based on 2.6.32-rc8-omap
though.
See http://lttng.org/content/download
LTTng OMAP support prior to this one won't support suspend/resume and
DVFS correctly. The LTTng version you have for 2.6.29 is possibly based
on the "generic" timestamp support, which provides a 1 HZ accuracy,
which is pretty coarse.
Hope this helps,
Mathieu
>
> Thanks advance,
>
> Regards,
> Hugo
>
> _______________________________________________
> ltt-dev mailing list
> ltt-dev at lists.casi.polymtl.ca
> http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
>
--
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
parent reply other threads:[~2010-06-19 16:15 UTC|newest]
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[parent not found: <4C04DA1F.3050105@ti.com>]
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