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=-5.0 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 4FD4FC4332B for ; Wed, 6 Jan 2021 13:38:06 +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 BD0742226A for ; Wed, 6 Jan 2021 13:38:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BD0742226A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38548 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kx90m-0001ak-Nh for qemu-devel@archiver.kernel.org; Wed, 06 Jan 2021 08:38:04 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39446) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kx8zU-0000jJ-5W for qemu-devel@nongnu.org; Wed, 06 Jan 2021 08:36:44 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:35735) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kx8zQ-0001ca-RE for qemu-devel@nongnu.org; Wed, 06 Jan 2021 08:36:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1609940198; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=abK9UDDFCljHxp2HwD5SwLHOtjjDUk5uy/f71sNronM=; b=CDijYckxUPt301g76MeDwfdirHAcYtvYFaI/uJm08JWEDSKefm+4YNVLsVHQlkETXzSrnF wGgPKH/RjaRwCjwxLW3XqNJz0CfKdsn7Hf9MkKRZ2ODBOUMSC6UaqSuSeUz5SAMi5MYcqv qxWg7F+Gls/h3yLBy8ctsedlfyAdsIo= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-106-YHt9WX9RNAS099_Hrkl1hA-1; Wed, 06 Jan 2021 08:36:28 -0500 X-MC-Unique: YHt9WX9RNAS099_Hrkl1hA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5319C801ADB; Wed, 6 Jan 2021 13:36:27 +0000 (UTC) Received: from redhat.com (ovpn-114-197.ams2.redhat.com [10.36.114.197]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 430EA19D7C; Wed, 6 Jan 2021 13:36:25 +0000 (UTC) Date: Wed, 6 Jan 2021 13:36:22 +0000 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: qemu-devel@nongnu.org Subject: Re: [PATCH] cirrus: don't run full qtest on macOS Message-ID: <20210106133622.GM976881@redhat.com> References: <20210106114159.981538-1-berrange@redhat.com> MIME-Version: 1.0 In-Reply-To: <20210106114159.981538-1-berrange@redhat.com> User-Agent: Mutt/1.14.6 (2020-07-11) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=63.128.21.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.252, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Cc: Ed Maste , Thomas Huth , Alex =?utf-8?Q?Benn=C3=A9e?= , Li-Wen Hsu , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Wed, Jan 06, 2021 at 11:41:59AM +0000, Daniel P. Berrangé wrote: > The Cirrus CI macOS build hosts have exhibited a serious performance > degradation in recent months. For example the "qom-test" qtest takes > over an hour for only the qemu-system-aarch64 binary. This is as much > 20-40 times slower than other environments. The other qtests all show > similar performance degradation, as do many of the unit tests. > > This does not appear related to QEMU code changes, since older git > commits which were known to fully complete in less than 1 hour on > Cirrus CI now also show similar bad performance. Either Cirrus CI > performance has degraded, or an change in its environment has exposed > a latent bug widely affecting all of QEMU. Debugging the qom-test > showed no easily identified large bottleneck - every step of the > test execution was simply slower. It appears I might be mistaken here. On IRC it was reported that going back furrther to v5.1.0 shows good performance in Cirrus still. I had only gone back as far as 2a5a79d1b57280edd72193f6031de3feb682154e which I thought was fast originally. So somewhere between v5.1.0 and 2a5a79 we apparently regressed. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|