linux-kernel - Re: [Cbe-oss-dev] [RFC, PATCH] CELL Oprofile SPU profiling updated patch

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 8 Feb 2007 19:01:19 +0100
From:	Adrian Reber <adrian@...as.de>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	cbe-oss-dev@...abs.org, linuxppc-dev@...abs.org,
	oprofile-list@...ts.sourceforge.net,
	LKML <linux-kernel@...r.kernel.org>,
	Milton Miller <miltonm@....com>, Carl Love <cel@...ibm.com>
Subject: Re: [Cbe-oss-dev] [RFC, PATCH] CELL Oprofile SPU profiling updated patch

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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/