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=1.3 required=3.0 tests=DKIM_SIGNED,FSL_HELO_FAKE, MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=no 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 6A29DECDFB3 for ; Sun, 15 Jul 2018 21:55:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 11DC32087C for ; Sun, 15 Jul 2018 21:55:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CyPj61lY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 11DC32087C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727091AbeGOWTR (ORCPT ); Sun, 15 Jul 2018 18:19:17 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:36860 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726984AbeGOWTQ (ORCPT ); Sun, 15 Jul 2018 18:19:16 -0400 Received: by mail-wr1-f67.google.com with SMTP id h9-v6so30005604wro.3; Sun, 15 Jul 2018 14:54:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=lsQnFH/YzjJxBMeuL9m7OSZBdHT6BGAWWXRLvJdwuuk=; b=CyPj61lY69r6+rnh8BMJnYDHpj9Lp9Zc6Hd+6CtZIssKZISx19q9WIUHxzVJcsqz13 +ejEpX12hqSClUceQh29Gwbp4j92GzuXKdtftZ50PDgZ3zPK2FjYTTbgryw7MhK9HjFi ccW825HnQubR4v31Y3OXah/p/8jpgPkLLjWuff6hdzXX4Mmqdl6B3w29zvtkLoXPTcvg Mwm2Gpzx4tu0jzrEO7usJgFqJ785tSaXkWxZjpSiBgEnn+Uum1YMRR6Khef2aKgApdO9 QJKtGevhi6XqvwwSF3EJTSNHTWVowK6N7+R5xepJFzwsO9IFekMUYQmsjCG9GOx0Lpzp Unxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=lsQnFH/YzjJxBMeuL9m7OSZBdHT6BGAWWXRLvJdwuuk=; b=Kj4HkJHspaGFHDwdY55weIN/zcA86QA5AMOFdR5sjiTassz9IZTdMgzrk/XeW9tsNj W9yfJJtyipLHU1QYs05MmD3QWlq48jQ3iBTib4GNomjiLwAwG64scP8BwfIM/4ukSLOS YP/Nec5UuDL/MHvFlAw5W75gpBaYCaffYiuQTPmi2Dr0IZW837Lpfbek3FBVjhx8lu4G YMWaRXKNGsALwq5mbmTgUbByk3HbzbEa/slXJwoNoizB3hArrFDygmZ/OzQwqVG8eC8g 6kWA3HgbJj3A/CovAI6hMeSr9d3eP+PX+X5XkGhUI9Uku6WeLypNr4iDLtJSluEf+if6 G1Qw== X-Gm-Message-State: AOUpUlEayXsxxFrohYCyh/xAsZWTuK7+vrmqXdOA7G3CShc0j4An1IR+ mSCuI0bFNZWH6NxNaexvfmuo+g== X-Google-Smtp-Source: AAOMgpez/hoXqLlCUu8QceGjjhWgJSax4DBUcfO3zdkv65wkf5sWJW98C9xT0UlnIKvWsol40w1CXA== X-Received: by 2002:adf:b3d7:: with SMTP id x23-v6mr208223wrd.253.1531691695940; Sun, 15 Jul 2018 14:54:55 -0700 (PDT) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id 31-v6sm32610165wra.26.2018.07.15.14.54.54 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 15 Jul 2018 14:54:55 -0700 (PDT) Date: Sun, 15 Jul 2018 23:54:52 +0200 From: Ingo Molnar To: Nadav Amit , Masahiro Yamada Cc: Linux Kernel Mailing List , X86 ML , Ingo Molnar , Thomas Gleixner , Masahiro Yamada , Sam Ravnborg , Alok Kataria , Christopher Li , Greg Kroah-Hartman , "H. Peter Anvin" , Jan Beulich , Josh Poimboeuf , Juergen Gross , Kate Stewart , Kees Cook , "linux-sparse@vger.kernel.org" , Peter Zijlstra , Philippe Ombredanne , "virtualization@lists.linux-foundation.org" , Linus Torvalds Subject: [kbuild ack?] Re: [PATCH v6 0/9] x86: macrofying inline asm for better compilation Message-ID: <20180715215452.GA14040@gmail.com> References: <20180622172212.199633-1-namit@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Nadav Amit wrote: > > I ran some limited number of benchmarks, and in general the performance > > impact is not very notable. You can still see >10 cycles shaved off some > > syscalls that manipulate page-tables (e.g., mprotect()), in which > > paravirt caused many functions not to be inlined. In addition this > > patch-set can prevent issues such as [1], and improves code readability > > and maintainability. Ok, that's good enough as a benefit, I suppose. > > Nadav Amit (9): > > Makefile: Prepare for using macros for inline asm This non-trivial kbuild patch needs an Acked-by from Masahiro. Thanks, Ingo