Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755830AbZG1WSl (ORCPT ); Tue, 28 Jul 2009 18:18:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755810AbZG1WSk (ORCPT ); Tue, 28 Jul 2009 18:18:40 -0400 Received: from sg2ehsobe004.messaging.microsoft.com ([207.46.51.78]:26917 "EHLO SG2EHSOBE004.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755798AbZG1WSj convert rfc822-to-8bit (ORCPT ); Tue, 28 Jul 2009 18:18:39 -0400 X-SpamScore: -23 X-BigFish: VPS-23(zz542N1432R9371Pzz1202hzzz32i6bh203h61h) X-Spam-TCS-SCL: 0:0 X-WSS-ID: 0KNIJAQ-02-1KN-02 X-M-MSG: X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-Class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 8BIT Subject: RE: [PATCH 0/26] oprofile: Performance counter multiplexing Date: Tue, 28 Jul 2009 17:18:26 -0500 Message-ID: <0F3CDC76A0A8FB48A8C88865301C4F12973BC0@SAUSEXMB2.amd.com> In-Reply-To: <87ljm8hcjx.fsf@basil.nowhere.org> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [PATCH 0/26] oprofile: Performance counter multiplexing Thread-Index: AcoPs/YtXgCtIHIeQjGZNKlFXWyGRAAHLcvQ References: <1248800846-25422-1-git-send-email-robert.richter@amd.com> <87ljm8hcjx.fsf@basil.nowhere.org> From: "Suthikulpanit, Suravee" To: "Andi Kleen" , "Richter, Robert" CC: "LKML" , "oprofile-list" X-OriginalArrivalTime: 28 Jul 2009 22:18:27.0725 (UTC) FILETIME=[54B59BD0:01CA0FD1] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1976 Lines: 60 Hi, The user-space support is currently in AMD CodeAnalyst utility. I am working on the more generic user-space support (non-AMD specific) and will send the patches to OProfile for review. Suravee -----Original Message----- From: Andi Kleen [mailto:andi@firstfloor.org] Sent: Tuesday, July 28, 2009 1:45 PM To: Richter, Robert Cc: LKML; oprofile-list Subject: Re: [PATCH 0/26] oprofile: Performance counter multiplexing Robert Richter writes: > If unsure, say N. > > +config OPROFILE_EVENT_MULTIPLEX > + bool "OProfile multiplexing support (EXPERIMENTAL)" > + default n > + depends on OPROFILE && X86 > + help > + The number of hardware counters is limited. The multiplexing > + feature enables OProfile to gather more events than counters > + are provided by the hardware. This is realized by switching > + between events at an user specified time interval. > + I would suggest to drop that CONFIG and have the code unconditional. It's not a lot code and should be always available. Will do more detailed review later and will look at Intel P6 support. Where's the userland support for this? -Andi -- ak@linux.intel.com -- Speaking for myself only. ------------------------------------------------------------------------ ------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ oprofile-list mailing list oprofile-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oprofile-list -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/