From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932426AbdJ3P7z (ORCPT ); Mon, 30 Oct 2017 11:59:55 -0400 Received: from pandora.armlinux.org.uk ([78.32.30.218]:58878 "EHLO pandora.armlinux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932148AbdJ3P7v (ORCPT ); Mon, 30 Oct 2017 11:59:51 -0400 Date: Mon, 30 Oct 2017 15:59:40 +0000 From: Russell King - ARM Linux To: Mark Salyzyn Cc: linux-kernel@vger.kernel.org, James Morse , Catalin Marinas , Will Deacon , Andy Lutomirski , Dmitry Safonov , John Stultz , Mark Rutland , Laura Abbott , Kees Cook , Ard Biesheuvel , Andy Gross , Kevin Brodsky , Andrew Pinski , linux-arm-kernel@lists.infradead.org, Mark Salyzyn Subject: Re: [PATCH v3 04/12] arm: vdso: enforce monotonic and realtime as inline Message-ID: <20171030155940.GR20805@n2100.armlinux.org.uk> References: <20171027222531.57223-1-salyzyn@android.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171027222531.57223-1-salyzyn@android.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 27, 2017 at 03:25:28PM -0700, Mark Salyzyn wrote: > Ensure monotonic and realtime are inline, small price to pay for > high volume common request. Is this just based on a hunch, or is it based on proper measurement? If proper measurement, where's the data? What CPU was it measured with? How does this change affect other CPUs? -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up According to speedtest.net: 8.21Mbps down 510kbps up