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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT 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 2C93AC83004 for ; Wed, 29 Apr 2020 06:46:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 174DB206D6 for ; Wed, 29 Apr 2020 06:46:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726774AbgD2Gqn (ORCPT ); Wed, 29 Apr 2020 02:46:43 -0400 Received: from out30-57.freemail.mail.aliyun.com ([115.124.30.57]:58852 "EHLO out30-57.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726355AbgD2Gqm (ORCPT ); Wed, 29 Apr 2020 02:46:42 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R331e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e07484;MF=changhuaixin@linux.alibaba.com;NM=1;PH=DS;RN=12;SR=0;TI=SMTPD_---0Tx.8cMk_1588142795; Received: from localhost(mailfrom:changhuaixin@linux.alibaba.com fp:SMTPD_---0Tx.8cMk_1588142795) by smtp.aliyun-inc.com(127.0.0.1); Wed, 29 Apr 2020 14:46:39 +0800 From: Huaixin Chang To: linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org Cc: bp@alien8.de, hpa@zytor.com, jpoimboe@redhat.com, luto@amacapital.net, michal.lkml@markovi.net, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org, yamada.masahiro@socionext.com Subject: [PATCH 0/2] Build ORC fast lookup table in scripts/sorttable tool Date: Wed, 29 Apr 2020 14:46:24 +0800 Message-Id: <20200429064626.16389-1-changhuaixin@linux.alibaba.com> X-Mailer: git-send-email 2.14.4.44.g2045bb6 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Move building of fast lookup table from boot to sorttable tool. This saves us 6380us boot time on Intel(R) Xeon(R) CPU E5-2682 v4 @ 2.50GHz with cores. Huaixin Chang (2): scripts/sorttable: Build orc fast lookup table via sorttable tool x86/unwind/orc: Remove unwind_init() from x86 boot arch/x86/include/asm/unwind.h | 2 - arch/x86/kernel/setup.c | 2 - arch/x86/kernel/unwind_orc.c | 51 ---------------------- scripts/sorttable.h | 99 ++++++++++++++++++++++++++++++++++++++++--- 4 files changed, 92 insertions(+), 62 deletions(-) -- 2.14.4.44.g2045bb6