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From: Adrian Reber <adrian@lisas.de>
To: Arnd Bergmann <arnd@arndb.de>
Cc: cbe-oss-dev@ozlabs.org, linuxppc-dev@ozlabs.org,
	oprofile-list@lists.sourceforge.net,
	LKML <linux-kernel@vger.kernel.org>,
	Milton Miller <miltonm@bga.com>, Carl Love <cel@us.ibm.com>
Subject: Re: [Cbe-oss-dev] [RFC, PATCH] CELL Oprofile SPU profiling updated patch
Date: Thu, 8 Feb 2007 19:01:19 +0100	[thread overview]
Message-ID: <20070208180119.GA24743@lisas.de> (raw)
In-Reply-To: <200702081821.57358.arnd@arndb.de>

On Thu, Feb 08, 2007 at 06:21:56PM +0100, Arnd Bergmann wrote:
[...]
> Moving the sample rate computation to user space sounds like the right
> idea, but why not have a more drastic version of it:
> 
> Right now, all products that support this feature run at the same clock
> rate (3.2 Ghz), with cpufreq, we can reduce this to 1.6 Ghz. If I understand
> this correctly, the value depends only on the frequency, so we could simply
> hardcode this in the kernel, and print out a warning message if we ever
> encounter a different frequency, right?

Just for the record... CAB is running with 2.8 GHz. At least all the boards
I have seen.

		Adrian

  reply	other threads:[~2007-02-08 18:35 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-06  0:28 [RFC,PATCH] CELL PPU " Carl Love
2007-02-06  0:46 ` Paul Mackerras
2007-02-06  0:49 ` [Cbe-oss-dev] [RFC, PATCH] " Benjamin Herrenschmidt
2007-02-06 23:02 ` [Cbe-oss-dev] [RFC, PATCH] CELL " Carl Love
2007-02-07 15:41   ` Maynard Johnson
2007-02-07 22:48     ` Michael Ellerman
2007-02-08 15:03       ` Maynard Johnson
2007-02-08 14:18   ` Milton Miller
2007-02-08 17:21     ` Arnd Bergmann
2007-02-08 18:01       ` Adrian Reber [this message]
2007-02-08 22:51       ` Carl Love
2007-02-09  2:46         ` Milton Miller
2007-02-09 16:17           ` Carl Love
2007-02-11 22:46             ` Milton Miller
2007-02-12 16:38               ` Carl Love
2007-02-09 18:47       ` Milton Miller
2007-02-09 19:10         ` Arnd Bergmann
2007-02-09 19:46           ` Milton Miller
2007-02-08 23:59     ` Maynard Johnson
2007-02-09 18:03       ` Milton Miller
2007-02-14 23:52 Carl Love
2007-02-15 14:37 ` Arnd Bergmann
2007-02-15 16:15   ` Maynard Johnson
2007-02-15 18:13     ` Arnd Bergmann
2007-02-15 20:21   ` Carl Love
2007-02-15 21:03     ` Arnd Bergmann
2007-02-15 21:50     ` Paul E. McKenney
2007-02-16  0:33       ` Arnd Bergmann
2007-02-16  0:32   ` Maynard Johnson
2007-02-16 17:14     ` Arnd Bergmann
2007-02-16 21:43       ` Maynard Johnson
2007-02-18 23:18         ` Maynard Johnson
2007-02-22  0:02 Carl Love
2007-02-26 23:50 ` Arnd Bergmann
2007-02-27  1:31   ` Michael Ellerman
2007-02-27 16:52   ` Maynard Johnson
2007-02-28  1:44     ` Arnd Bergmann

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