From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265799AbUFVWZH (ORCPT ); Tue, 22 Jun 2004 18:25:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266040AbUFVWXD (ORCPT ); Tue, 22 Jun 2004 18:23:03 -0400 Received: from gate.crashing.org ([63.228.1.57]:34731 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S266014AbUFVWVZ (ORCPT ); Tue, 22 Jun 2004 18:21:25 -0400 Subject: Re: [PATCH][2.6.7-mm1] perfctr ppc32 update From: Benjamin Herrenschmidt To: Mikael Pettersson Cc: Andrew Morton , Linux Kernel list In-Reply-To: <16600.45126.425726.174463@alkaid.it.uu.se> References: <200406212014.i5LKElHD019224@alkaid.it.uu.se> <1087928274.1881.4.camel@gaston> <16600.37372.473221.988885@alkaid.it.uu.se> <1087935661.1855.10.camel@gaston> <16600.39256.669322.177553@alkaid.it.uu.se> <1087939194.1839.13.camel@gaston> <16600.45126.425726.174463@alkaid.it.uu.se> Content-Type: text/plain Message-Id: <1087942472.1855.75.camel@gaston> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Tue, 22 Jun 2004 17:14:33 -0500 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2004-06-22 at 17:18, Mikael Pettersson wrote: > So can I assume constant TB speed? In that case I don't > really care about core speed changes. So far, tb speed is constant yes, I haven't seen a case where it's not. What we should really do is to expose the tb speed to userspace generically on ppc, possibly via /proc/cpuinfo like we do on ppc64, it definitely has other uses than just profiling. Ben.