From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758621AbYJILot (ORCPT ); Thu, 9 Oct 2008 07:44:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756615AbYJILol (ORCPT ); Thu, 9 Oct 2008 07:44:41 -0400 Received: from ey-out-2122.google.com ([74.125.78.27]:38176 "EHLO ey-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756356AbYJILok (ORCPT ); Thu, 9 Oct 2008 07:44:40 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=u+S8HqDcdcd4dR3UeanaHQlZI6wqz/88Tp+G9VgugEKK773DCQtVUga1lu+8Bb2id3 MSBRsyQMJKxEQUxE85qF0SIBNVl8pn6cPZdeVWurKhgPsU1hwIkmHY3aX0dhGBSWCzko BEdQXkp8RbLO2yK3M6qoQB7yLEXd7bribS+Qo= Message-ID: Date: Thu, 9 Oct 2008 13:44:38 +0200 From: "=?ISO-8859-1?Q?Fr=E9d=E9ric_Weisbecker?=" To: "Andi Kleen" Subject: Re: [PATCH] rudimentary tracing for Classic RCU Cc: paulmck@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, mingo@elte.hu, rjw@sisk.pl, dipankar@in.ibm.com, tglx@linuxtronix.de In-Reply-To: <20081009105305.GF24560@one.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20081006232837.GA1157@basil.nowhere.org> <20081007071544.GC20740@one.firstfloor.org> <20081007152629.GH6384@linux.vnet.ibm.com> <20081007154939.GN20740@one.firstfloor.org> <20081007163401.GJ6384@linux.vnet.ibm.com> <20081007210947.GP20740@one.firstfloor.org> <20081007212215.GN6384@linux.vnet.ibm.com> <20081009010846.GA10188@linux.vnet.ibm.com> <20081009105305.GF24560@one.firstfloor.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2008/10/9 Andi Kleen : >> Why don't you use the ring-buffer tracing engine? > > Because he doesn't actually need a ring buffer, it's a snapshot in > time. You have the possibility to implement a read callback to not use the ring buffer. > ftrace-of-bork wants to assimilate everything? I just proposed that to unify the tracers.