From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25683C4CECE for ; Mon, 14 Oct 2019 14:01:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EC908207FF for ; Mon, 14 Oct 2019 14:01:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="R6JQT9lx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732379AbfJNOBm (ORCPT ); Mon, 14 Oct 2019 10:01:42 -0400 Received: from mail-qk1-f194.google.com ([209.85.222.194]:35771 "EHLO mail-qk1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730477AbfJNOBm (ORCPT ); Mon, 14 Oct 2019 10:01:42 -0400 Received: by mail-qk1-f194.google.com with SMTP id w2so15993238qkf.2 for ; Mon, 14 Oct 2019 07:01:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:date:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=wwNskThWX0Rg32SLCjk1C+65CwCG33vEO5AR8DBfLPg=; b=R6JQT9lxbfFg+cJ6oCkUvptYOIGuphlHRuAdg0MTNc52WMLPkcQTT2asckWEzKx2DL xwUVW9RGXOiFqWShHEfwUZaGEh6hRt8Wb0MBJ+PAk4CzeY6dkIo3Dm6Ttc9tksohTum7 uE0S3Xgw2KDYPfLWsG1BFX+gmhc9yp/79cNNbwxQPTxN9xgWx0o8zVHNUQhS5NwlYuMF PsTsosvzE9Nt914Cd2QMgTuyD/3F+8gmsRs4s9qsFYjVCCggQ72gqivoO8NLmvwDXhbZ AeXfEHp8YjvSkDkl/Q9k0xanMJM+Mj4GrO3vZpWGDaPs6BuH49VzBNfAC3OyqmEvfmtp U8Zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=wwNskThWX0Rg32SLCjk1C+65CwCG33vEO5AR8DBfLPg=; b=bO61mqWzBgC8sKN46CUjoTE4xZuFJQQVQBIcxwRh/7xVar/oXJ6JoJVCa03KxEt5Aq ZAG1/YJ6NalMrv14b9TyjjgC5/ObSvGe4lSpgaLcZobqqGgNjinCHjkYXtPVorg4n6W1 nxqntwJUgqWrLE0blmtqgVMC5ssHwxcInLmQIr10zMzFRfKA4slrlBSrZHRSq+NzT3Ct EEyNYTDNJQ5ZYBIdXErd9PIwf3+RXgFq+F+CTxii4dBqlWF8WGANCKen5T6ic1pkEWar SZsWMtWHz3iyJXdSG5wj7IK2aOg5mihMgh/O6t9Zsy6zWXjulf2Zar2HLL4dsLtAPfta 4KnA== X-Gm-Message-State: APjAAAUVdZpw+JvmD1v2dOWtRTK2euP0y1WqMlSM7PGl5opC6nd3E7Qt 6BdrlxlWBBOHidigwjZyGRk= X-Google-Smtp-Source: APXvYqzbQNZyX4SWywgcvJL6SZav2qwVCKpDqxJy98zGUgyGABylAa50UD9Ocp38tFZQVOBmBSMIFg== X-Received: by 2002:a37:4f4d:: with SMTP id d74mr30173443qkb.51.1571061701212; Mon, 14 Oct 2019 07:01:41 -0700 (PDT) Received: from quaco.ghostprotocols.net ([179.97.35.50]) by smtp.gmail.com with ESMTPSA id l23sm13952783qta.53.2019.10.14.07.01.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Oct 2019 07:01:40 -0700 (PDT) From: Arnaldo Carvalho de Melo X-Google-Original-From: Arnaldo Carvalho de Melo Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id 41AA24DD66; Mon, 14 Oct 2019 11:01:37 -0300 (-03) Date: Mon, 14 Oct 2019 11:01:37 -0300 To: Andi Kleen Cc: Jiri Olsa , lkml , Ingo Molnar , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Michael Petlan Subject: Re: [PATCH 1/3] perf tools: Allow to build with -ltcmalloc Message-ID: <20191014140137.GA19627@kernel.org> References: <20191013151427.11941-1-jolsa@kernel.org> <20191013151427.11941-2-jolsa@kernel.org> <20191014013322.GI9933@tassilo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191014013322.GI9933@tassilo.jf.intel.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Sun, Oct 13, 2019 at 06:33:22PM -0700, Andi Kleen escreveu: > > diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf > > index a099a8a89447..8f1ba986d3bf 100644 > > --- a/tools/perf/Makefile.perf > > +++ b/tools/perf/Makefile.perf > > @@ -114,6 +114,8 @@ include ../scripts/utilities.mak > > # Define NO_LIBZSTD if you do not want support of Zstandard based runtime > > # trace compression in record mode. > > # > > +# Define TCMALLOC to enable tcmalloc heap profiling. > > It might be useful for more than just profiling. I found that gcc runs a > few percent faster with tcmalloc for some workloads. Maybe the same is > true for perf too, as sometimes it does a lot of mallocs. Thanks, applied. Waiting for the conclusion of the discussion about JIT, etc to look at the rest. - Arnaldo