From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: lenb@kernel.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH 4/5] ACPI: Do cpufreq clamping for throttling per package v2
Date: Mon, 6 Feb 2012 16:31:06 +0000 [thread overview]
Message-ID: <20120206163106.GB32061@srcf.ucam.org> (raw)
In-Reply-To: <1328545032-21373-5-git-send-email-andi@firstfloor.org>
On Mon, Feb 06, 2012 at 08:17:11AM -0800, Andi Kleen wrote:
> +#define reduction_pctg(cpu) \
> + per_cpu(cpufreq_thermal_reduction_pctg, phys_package_first_cpu(cpu))
I don't like using percentages here - we end up with the potential for
several percentages to end up mapping to the same P state. I've sent a
patch that replaces the percentage code with just stepping through P
states instead. But otherwise, yes, this seems sensible. An open
question is whether we should be doing the same on _PPC notifications.
There's some vague evidence that Windows does.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2012-02-06 16:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-06 16:17 Updated throttling fix patchkit Andi Kleen
2012-02-06 16:17 ` [PATCH 1/5] ACPI: ec: Do request_region outside WARN() Andi Kleen
2012-03-22 6:08 ` Len Brown
2012-02-06 16:17 ` [PATCH 2/5] ACPI: Make ACPI interrupt threaded Andi Kleen
2012-02-06 16:17 ` [PATCH 4/5] ACPI: Do cpufreq clamping for throttling per package v2 Andi Kleen
2012-02-06 16:31 ` Matthew Garrett [this message]
2012-02-06 17:59 ` Andi Kleen
2012-02-13 23:30 ` Len Brown
2012-02-14 0:17 ` Matthew Garrett
2012-03-22 6:13 ` Len Brown
2012-03-30 10:05 ` Len Brown
2012-03-30 11:46 ` Matthew Garrett
2012-03-30 12:00 ` Len Brown
2012-02-06 16:17 ` [PATCH 5/5] Disable MCP limit exceeded messages from Intel IPS driver Andi Kleen
2012-02-07 19:45 ` Jesse Barnes
2012-03-22 6:25 ` Len Brown
[not found] ` <1328545032-21373-4-git-send-email-andi@firstfloor.org>
2012-02-06 16:27 ` [PATCH 3/5] ACPI: EC: Add a limited number of repeats after false EC interrupts Matthew Garrett
2012-02-06 18:01 ` Andi Kleen
2012-02-06 16:31 ` Updated throttling fix patchkit Matthew Garrett
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