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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 D5D45C433ED for ; Mon, 17 May 2021 19:24:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7A9B3611BD for ; Mon, 17 May 2021 19:24:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7A9B3611BD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54454 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1liirK-0006XH-Hp for qemu-devel@archiver.kernel.org; Mon, 17 May 2021 15:24:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42056) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1liiFG-0002IU-6v for qemu-devel@nongnu.org; Mon, 17 May 2021 14:45:38 -0400 Received: from indium.canonical.com ([91.189.90.7]:46706) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1liiFE-00058M-FX for qemu-devel@nongnu.org; Mon, 17 May 2021 14:45:37 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.93 #5 (Debian)) id 1liiFD-0003KT-1G for ; Mon, 17 May 2021 18:45:35 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 083452E8135 for ; Mon, 17 May 2021 18:45:35 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Mon, 17 May 2021 18:39:05 -0000 From: Thomas Huth <1923648@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Fix Released; importance=Undecided; assignee=None; X-Launchpad-Bug-Tags: app-nap freezes macos X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: nnlkcncff th-huth X-Launchpad-Bug-Reporter: Vasiliy Nikonov (nnlkcncff) X-Launchpad-Bug-Modifier: Thomas Huth (th-huth) References: <161833605825.22256.5828075734668933155.malonedeb@soybean.canonical.com> Message-Id: <162127674601.2101.371955905639261887.malone@wampee.canonical.com> Subject: [Bug 1923648] Re: macOS App Nap feature gradually freezes QEMU process X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="5321c3f40fa4d4b847f4e47fb766e7b95ed5036c"; Instance="production" X-Launchpad-Hash: 5193dc863d82029e3b4a04f62fbab2fbf3cda0fa Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1923648 <1923648@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Moved here: https://gitlab.com/qemu-project/qemu/-/issues/334 ** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #334 https://gitlab.com/qemu-project/qemu/-/issues/334 -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1923648 Title: macOS App Nap feature gradually freezes QEMU process Status in QEMU: Fix Released Bug description: macOS version: 10.15.2 QEMU versions: 5.2.0 (from MacPorts) 5.2.92 (v6.0.0-rc2-23-g9692c7b037) If the QEMU window is not visible (hidden, minimized or another application is in full screen mode), the QEMU process gradually freezes: it still runs, but the VM does not respond to external requests such as Telnet or SSH until the QEMU window is visible on the desktop. This behavior is due to the work of the macOS App Nap function: https://developer.apple.com/library/archive/documentation/Performance/Con= ceptual/power_efficiency_guidelines_osx/AppNap.html#//apple_ref/doc/uid/TP4= 0013929-CH2-SW1 It doesn't matter how the process is started -- as a background job or as a foreground shell process in case QEMU has a desktop window. My VM does not have a display output, only a serial line, most likely if the VM was using OpenGL, or playing sound (or any other App Nap triggers), then the problem would never have been detected. In my case only one starting way without this problem: sudo qemu-system-x86_64 -nodefaults \ -cpu host -accel hvf -smp 1 -m 384 \ -device virtio-blk-pci,drive=3Dflash0 \ -drive file=3D/vios-adventerprisek9-m.vmdk.SPA.156-1.T.vmdk,if=3Dnone,for= mat=3Dvmdk,id=3Dflash0 \ -device e1000,netdev=3Dlocal -netdev tap,id=3Dlocal,ifname=3Dtap0,script= =3Dno,downscript=3Dno \ -serial stdio -display none The typical way from the internet to disable App Nap doesn't work: defaults write NSGlobalDomain NSAppSleepDisabled -bool YES To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1923648/+subscriptions