From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967864AbcA1Waz (ORCPT ); Thu, 28 Jan 2016 17:30:55 -0500 Received: from mga04.intel.com ([192.55.52.120]:45119 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965255AbcA1Way (ORCPT ); Thu, 28 Jan 2016 17:30:54 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,360,1449561600"; d="scan'208";a="891450933" From: Andi Kleen To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, davidlohr.bueso@hp.com, rafael.j.wysocki@intel.com, lenb@kernel.org Subject: Re: [PATCH] Optimize int_sqrt for small values for faster idle References: <1454017365-8509-1-git-send-email-andi@firstfloor.org> Date: Thu, 28 Jan 2016 14:30:53 -0800 In-Reply-To: <1454017365-8509-1-git-send-email-andi@firstfloor.org> (Andi Kleen's message of "Thu, 28 Jan 2016 13:42:45 -0800") Message-ID: <87y4b9gwv6.fsf@tassilo.jf.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andi Kleen writes: > From: Andi Kleen > > The menu cpuidle governor does at least two int_sqrt() each time > we go into idle in get_typical_interval to compute stddev Added a stupid typo in the last minute. I'll post a new version. -Andi -- ak@linux.intel.com -- Speaking for myself only