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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id d5si9888392pfj.222.2022.02.09.04.22.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Feb 2022 04:22:03 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 1A2DDE08DC7B; Wed, 9 Feb 2022 02:15:25 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357970AbiBHSAN (ORCPT + 99 others); Tue, 8 Feb 2022 13:00:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44904 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234348AbiBHSAL (ORCPT ); Tue, 8 Feb 2022 13:00:11 -0500 Received: from mail-yb1-f177.google.com (mail-yb1-f177.google.com [209.85.219.177]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98C02C061576; Tue, 8 Feb 2022 10:00:10 -0800 (PST) Received: by mail-yb1-f177.google.com with SMTP id bt13so28200818ybb.2; Tue, 08 Feb 2022 10:00:10 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Ii2RoA70hyPFpWjpQOIgYWVQ0Wgfgxw0SgqMO+aO1f0=; b=uuG3OZAleDzvPcCeNVi/PAaL5gysBLxLhgWxySnchelsXxph5tki0dERPRQlIFTb5v aXacVFuNFqqwaCw6Tw7R6jO2rdkEbyAlCXqbUYmSnsJ7uFz7lzpLceZ0lBtlMvnGfPC4 VNUz1MY5LPWBdU74soncENJ82yEe7fpRGfluysj90zg7p+nP4qHIBI7vpdBczYa1OOs6 DBK3Tg4H7gI0yFciM78krrnH6Nqx/wuXFZ4AAqXGPIFYYlvnbGhO81+XtWrWRzhf+CuS EcqhENZM+u4H90yQ3C0X0nCs7rYezpReoYxHeAJBCIJ7Z5fzAHMwysOVU+RYsJ+jGqvt aAXw== X-Gm-Message-State: AOAM533uuDZ6pUDHaD9JOEIEPxUkyHAhiUFqWA0z3Uhugb9zJWXSYEnz EWsoTyY+i7n/pn3hLKv6RlHG7N1l3fsuATKqljw= X-Received: by 2002:a05:6902:1545:: with SMTP id r5mr6035694ybu.475.1644343209557; Tue, 08 Feb 2022 10:00:09 -0800 (PST) MIME-Version: 1.0 References: <31603144-edec-df2d-fb46-283692c67420@leemhuis.info> In-Reply-To: <31603144-edec-df2d-fb46-283692c67420@leemhuis.info> From: "Rafael J. Wysocki" Date: Tue, 8 Feb 2022 18:59:58 +0100 Message-ID: Subject: Re: 100 ms boot time increase regression in acpi_init()/acpi_scan_bus() To: Thorsten Leemhuis Cc: Paul Menzel , "Rafael J. Wysocki" , ACPI Devel Maling List , LKML , Linux PCI , regressions@lists.linux.dev Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,MAILING_LIST_MULTI, RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 8, 2022 at 1:03 PM Thorsten Leemhuis wrote: > > Hi, this is your Linux kernel regression tracker speaking. > > Top-posting for once, to make this easy accessible to everyone. > > @Rafael or any other @acpi/@pm developer: what's the status here? > Neither in this thread nor in the bug ticket anything happened afaics. > Or is a 100ms boot time increase considered "not a regression"? It is on my list of things to look into, because it used to work faster, so depending on what change made it work slower, it may be possible to restore the previous performance without sacrificing too much. I honestly don't think that it is a noticeable issue for users in the field, though.