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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id DE753C001DF for ; Tue, 1 Aug 2023 13:36:30 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qQpXg-00061i-ES; Tue, 01 Aug 2023 09:36:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qQpXe-00060x-5y for qemu-devel@nongnu.org; Tue, 01 Aug 2023 09:36:02 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qQpXc-0004Ya-El for qemu-devel@nongnu.org; Tue, 01 Aug 2023 09:36:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1690896959; 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:in-reply-to:in-reply-to: references:references; bh=UaesI4L69omueqVnt8MLk2LSsWDDgnDl1dEWr/Jyi80=; b=S+fds4f5l8AnmGC092V3k+LlGKFdPmDDMPSkIZmvIRzm4/yv7ItQKiun17g5rCeABAlndO bPaqzmJKY3CGwWBdo7Nc/WbREYHXBdWYOaoSVMR/r1VpKb8Rt4s969O0yEx1075Mfp3QsM O2LI2OdlYwqM1XHNxns5hDk7THkPrsc= Received: from mimecast-mx02.redhat.com (66.187.233.73 [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-177-58NqGzeSMgS_TqtHI9lORA-1; Tue, 01 Aug 2023 09:35:57 -0400 X-MC-Unique: 58NqGzeSMgS_TqtHI9lORA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E25B7280460A; Tue, 1 Aug 2023 13:35:56 +0000 (UTC) Received: from redhat.com (unknown [10.42.28.93]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E23A52017DC6; Tue, 1 Aug 2023 13:35:55 +0000 (UTC) Date: Tue, 1 Aug 2023 14:35:53 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Thomas Huth Cc: qemu-devel@nongnu.org, =?utf-8?Q?Marc-Andr=C3=A9?= Lureau , Stefan Weil , Yonggang Luo , Peter Maydell Subject: Re: [RFC PATCH 0/6] Use Clang for compiling in the 64-bit MSYS2 job Message-ID: References: <20230728142748.305341-1-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230728142748.305341-1-thuth@redhat.com> User-Agent: Mutt/2.2.9 (2022-11-12) X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Fri, Jul 28, 2023 at 04:27:42PM +0200, Thomas Huth wrote: > The 64-bit MSYS2 job often times out in our CI, though we already have > limited it to a very minimum by using --without-default-devices etc. > GCC is incredibly slow here. By using Clang instead of GCC, the job > is ca. 15 minutes faster - that's enough buffer to avoid the timeouts > here. FYI, I have a complementary series here that achieves a 25 minute speedup cummulative speedup with GCC - the ideas would apply to clang too. https://lists.gnu.org/archive/html/qemu-devel/2023-08/msg00055.html With 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 :|