From: Arnd Bergmann <arnd@arndb.de>
To: maynardj@us.ibm.com
Cc: linuxppc-dev@ozlabs.org, cbe-oss-dev@ozlabs.org,
oprofile-list@lists.sourceforge.net,
linux-kernel@vger.kernel.org
Subject: Re: [Cbe-oss-dev] [RFC, PATCH 4/4] Add support to OProfile for profiling Cell BE SPUs -- update
Date: Sat, 3 Feb 2007 08:40:05 +0100 [thread overview]
Message-ID: <200702030840.06270.arnd@arndb.de> (raw)
In-Reply-To: <45C36B21.60400@us.ibm.com>
On Friday 02 February 2007 17:47, Maynard Johnson wrote:
>
> > We also want to be able to profile the context switch code itself, which
> > means that we also need one event buffer associated with the kernel to
> > collect events that for a zero context_id.
> The hardware design precludes tracing both SPU and PPU simultaneously.
>
I mean the SPU-side part of the context switch code, which you can find
in arch/powerpc/platforms/cell/spufs/spu_{save,restore}*.
This code is the one that runs when context_id == 0 is passed to the
callback.
Arnd <><
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: maynardj@us.ibm.com
Cc: cbe-oss-dev@ozlabs.org, linuxppc-dev@ozlabs.org,
oprofile-list@lists.sourceforge.net,
linux-kernel@vger.kernel.org
Subject: Re: [Cbe-oss-dev] [RFC, PATCH 4/4] Add support to OProfile for profiling Cell BE SPUs -- update
Date: Sat, 3 Feb 2007 08:40:05 +0100 [thread overview]
Message-ID: <200702030840.06270.arnd@arndb.de> (raw)
In-Reply-To: <45C36B21.60400@us.ibm.com>
On Friday 02 February 2007 17:47, Maynard Johnson wrote:
>
> > We also want to be able to profile the context switch code itself, which
> > means that we also need one event buffer associated with the kernel to
> > collect events that for a zero context_id.
> The hardware design precludes tracing both SPU and PPU simultaneously.
>
I mean the SPU-side part of the context switch code, which you can find
in arch/powerpc/platforms/cell/spufs/spu_{save,restore}*.
This code is the one that runs when context_id == 0 is passed to the
callback.
Arnd <><
next prev parent reply other threads:[~2007-02-03 7:40 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-29 19:45 [RFC, PATCH 0/4] Add support to OProfile for profiling Cell BE SPUs -- update Maynard Johnson
2007-01-29 19:46 ` [RFC, PATCH 1/4] " Maynard Johnson
2007-01-30 4:07 ` [Cbe-oss-dev] " Arnd Bergmann
2007-01-30 4:07 ` Arnd Bergmann
2007-01-30 10:39 ` Christoph Hellwig
2007-01-30 10:39 ` Christoph Hellwig
2007-01-30 22:49 ` Carl Love
2007-01-30 22:49 ` Carl Love
2007-01-30 22:57 ` Benjamin Herrenschmidt
2007-01-30 22:57 ` Benjamin Herrenschmidt
2007-01-31 8:47 ` Christoph Hellwig
2007-01-31 8:47 ` Christoph Hellwig
2007-01-30 22:59 ` Benjamin Herrenschmidt
2007-01-30 22:59 ` Benjamin Herrenschmidt
2007-01-29 19:47 ` [RFC, PATCH 2/4] " Maynard Johnson
2007-01-30 4:08 ` [Cbe-oss-dev] " Arnd Bergmann
2007-01-30 4:08 ` Arnd Bergmann
2007-01-30 23:51 ` Carl Love
2007-01-30 23:51 ` Carl Love
2007-01-29 19:48 ` [RFC, PATCH 3/4] " Maynard Johnson
2007-01-30 4:24 ` [Cbe-oss-dev] " Arnd Bergmann
2007-01-30 4:24 ` Arnd Bergmann
2007-01-30 15:31 ` Maynard Johnson
2007-01-30 15:31 ` Maynard Johnson
2007-01-31 0:35 ` Arnd Bergmann
2007-01-31 0:35 ` Arnd Bergmann
2007-01-29 19:48 ` [RFC, PATCH 4/4] " Maynard Johnson
2007-01-30 7:39 ` [Cbe-oss-dev] " Arnd Bergmann
2007-01-30 7:53 ` Benjamin Herrenschmidt
2007-01-30 7:53 ` Benjamin Herrenschmidt
2007-01-30 10:41 ` Christoph Hellwig
2007-01-30 10:41 ` Christoph Hellwig
2007-01-30 23:09 ` Maynard Johnson
2007-01-30 23:09 ` Maynard Johnson
2007-01-30 21:41 ` Maynard Johnson
2007-01-30 21:41 ` Maynard Johnson
2007-01-30 22:54 ` Maynard Johnson
2007-01-30 22:54 ` Maynard Johnson
2007-01-30 23:34 ` Benjamin Herrenschmidt
2007-01-30 23:34 ` Benjamin Herrenschmidt
2007-01-31 0:29 ` Maynard Johnson
2007-01-31 0:29 ` Maynard Johnson
2007-01-31 6:52 ` Arnd Bergmann
2007-01-31 6:52 ` Arnd Bergmann
2007-02-02 16:47 ` Maynard Johnson
2007-02-02 16:47 ` Maynard Johnson
2007-02-03 7:40 ` Arnd Bergmann [this message]
2007-02-03 7:40 ` Arnd Bergmann
2007-02-03 20:03 ` Maynard Johnson
2007-02-03 20:03 ` Maynard Johnson
2007-02-04 2:42 ` Arnd Bergmann
2007-02-04 2:42 ` Arnd Bergmann
2007-02-04 17:11 ` Maynard Johnson
2007-02-04 17:11 ` Maynard Johnson
2007-01-30 23:31 ` Carl Love
2007-01-30 23:31 ` Carl Love
2007-01-31 1:25 ` Christian Krafft
2007-01-31 1:25 ` Christian Krafft
2007-01-31 6:06 ` Arnd Bergmann
2007-01-31 6:06 ` Arnd Bergmann
2007-01-31 5:57 ` Arnd Bergmann
2007-01-31 5:57 ` Arnd Bergmann
2007-02-02 19:27 ` Maynard Johnson
2007-02-02 19:27 ` Maynard Johnson
2007-02-03 23:49 ` Maynard Johnson
2007-02-03 23:49 ` Maynard Johnson
2007-02-04 2:52 ` Arnd Bergmann
2007-02-04 2:52 ` Arnd Bergmann
2007-02-04 17:33 ` Maynard Johnson
2007-02-04 17:33 ` Maynard Johnson
2007-01-31 9:24 ` Milton Miller
2007-01-31 15:42 ` Arnd Bergmann
2007-02-01 18:56 ` Milton Miller
2007-02-02 0:54 ` Arnd Bergmann
2007-01-30 8:37 ` [RFC, PATCH 0/4] " Arnd Bergmann
2007-01-30 8:37 ` Arnd Bergmann
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