Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760306Ab3GSMG0 (ORCPT ); Fri, 19 Jul 2013 08:06:26 -0400 Received: from lgeamrelo02.lge.com ([156.147.1.126]:58588 "EHLO LGEAMRELO02.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760239Ab3GSMGY (ORCPT ); Fri, 19 Jul 2013 08:06:24 -0400 X-AuditID: 9c93017e-b7b62ae000000eeb-65-51e92bbe61d8 From: Namhyung Kim To: Jiri Olsa Cc: linux-kernel@vger.kernel.org, Corey Ashford , Frederic Weisbecker , Ingo Molnar , Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo , Andi Kleen , David Ahern Subject: Re: [PATCH 13/23] perf tools: Introduce perf.data version 3 format References: <1374083403-14591-1-git-send-email-jolsa@redhat.com> <1374083403-14591-14-git-send-email-jolsa@redhat.com> Date: Fri, 19 Jul 2013 21:06:22 +0900 In-Reply-To: <1374083403-14591-14-git-send-email-jolsa@redhat.com> (Jiri Olsa's message of "Wed, 17 Jul 2013 19:49:53 +0200") Message-ID: <877ggmwy81.fsf@sejong.aot.lge.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1119 Lines: 45 On Wed, 17 Jul 2013 19:49:53 +0200, Jiri Olsa wrote: > Introducing perf.data version 3 format. No functional change, > just introducing doc, magic bytes and the struct. > [SNIP] > +perf-data-file-v3(1) s/(1)/(5)/ The same goes to v2 doc. > +==================== > +Following text describes version 3 of the perf data file format, > +which is version that is currently used by perf tool. > + > +In version 3 we got rid of following sections: > + EVENT IDS > + EVENT ATTRIBUTES > + EVENT TYPES > + > +and keep only data and features sections. All the data > +from above listed sections are now read from specific > +FEATURES sections. > + > +benefits: > + - siplified header storage at the time the file is closed s/siplified/simplified/ > + - allowing cpu hotpluged addition/removal event IDs > + during the session due to 1) What is 1) ? Thanks, Namhyung -- 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/