Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756071AbZFYJWu (ORCPT ); Thu, 25 Jun 2009 05:22:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752810AbZFYJWn (ORCPT ); Thu, 25 Jun 2009 05:22:43 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:57338 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751744AbZFYJWm (ORCPT ); Thu, 25 Jun 2009 05:22:42 -0400 Date: Thu, 25 Jun 2009 11:22:22 +0200 From: Ingo Molnar To: Roland Dreier Cc: Jaswinder Singh Rajput , Thomas Gleixner , Peter Zijlstra , LKML Subject: Re: [PATCH -tip] perf_counter tools: shorten names for events Message-ID: <20090625092222.GB23547@elte.hu> References: <1245760130.3776.6.camel@localhost.localdomain> <20090623195656.GC8777@elte.hu> <1245876060.3038.7.camel@localhost.localdomain> <1245904175.3022.4.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3795 Lines: 94 * Roland Dreier wrote: > > Data-TLB-Cache-Load-Reference [Hardware cache event] > > Could become > > dTLB-load > dTLB-load-miss > iTLB-load I already went through this and suggested shorter names, that was the motivation of this patch. The new names i suggested two days ago can be found below. Ingo ----- Forwarded message from Ingo Molnar ----- Date: Tue, 23 Jun 2009 21:56:56 +0200 From: Ingo Molnar To: Jaswinder Singh Rajput Subject: Re: [PATCH -tip] perf_counter tools: shorten names for events Cc: Thomas Gleixner , Peter Zijlstra , LKML * Jaswinder Singh Rajput wrote: > After : > > Performance counter stats for 'ls -lR /usr/include/': > > 259250339 L1-d-load-refs (scaled from 22.73%) > 1187200 L1-d-load-miss (scaled from 23.01%) > 150454 L1-d-store-refs (scaled from 23.01%) > 494252 L1-d-prefetch-refs (scaled from 23.29%) > 362661 L1-d-prefetch-miss (scaled from 23.73%) > 247343449 L1-i-load-refs (scaled from 23.71%) > 4804990 L1-i-load-miss (scaled from 23.85%) > 108711 L1-i-prefetch-refs (scaled from 23.83%) > 6260313 L2-load-refs (scaled from 23.82%) > 605425 L2-load-miss (scaled from 23.82%) > 6898075 L2-store-refs (scaled from 23.96%) > 248334160 d-TLB-load-refs (scaled from 23.95%) > 3812835 d-TLB-load-miss (scaled from 23.87%) > 253208496 i-TLB-load-refs (scaled from 23.73%) > 5873 i-TLB-load-miss (scaled from 23.46%) > 110891027 Branch-load-refs (scaled from 23.21%) > 5529622 Branch-load-miss (scaled from 23.02%) here's an edited version of my suggestions: > 259250339 dL1-loads (scaled from 22.73%) > 1187200 dL1-load-misses (scaled from 23.01%) > 150454 dL1-stores (scaled from 23.01%) > 494252 dL1-prefetches (scaled from 23.29%) > 362661 dL1-prefetch-misses (scaled from 23.73%) > 247343449 iL1-loads (scaled from 23.71%) > 4804990 iL1-load-misses (scaled from 23.85%) > 108711 iL1-prefetches (scaled from 23.83%) > 6260313 LLC-loads (scaled from 23.82%) > 605425 LLC-load-misses (scaled from 23.82%) > 6898075 LLC-stores (scaled from 23.96%) > 248334160 dTLB-loads (scaled from 23.95%) > 3812835 dTLB-load-misses (scaled from 23.87%) > 253208496 iTLB-loads (scaled from 23.73%) > 5873 iTLB-load-misses (scaled from 23.46%) > 110891027 branches (scaled from 23.21%) > 5529622 branch-misses (scaled from 23.02%) We can leave out 'refs' i think - without any qualification statements like '247343449 iL1-loads' are still unambigious i think. Plus we can abbreviate dL1/iL1/dTLB/iTLB. The capitalization matters. Also, note that it's LLC (Last Level Cache), not L2. ( Sidenote: L2 can still be an alias for LLC, even though some CPUs have a L3 too. ) Note, branches are special - we dont really have 'branch loads', branches are executions. 'Branches' and 'Branch-misses' are the right term. Do you agree? Ingo -- 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/