From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 38509 invoked by alias); 10 Nov 2016 16:14:39 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 38495 invoked by uid 89); 10 Nov 2016 16:14:38 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.4 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.2 spammy=(unknown), Manager, video, Jim X-HELO: out4-smtp.messagingengine.com Received: from out4-smtp.messagingengine.com (HELO out4-smtp.messagingengine.com) (66.111.4.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 10 Nov 2016 16:14:28 +0000 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id D33DC21FE4; Thu, 10 Nov 2016 11:14:26 -0500 (EST) Received: from frontend2 ([10.202.2.161]) by compute1.internal (MEProxy); Thu, 10 Nov 2016 11:14:26 -0500 X-ME-Sender: Received: from [192.168.1.102] (host86-179-113-231.range86-179.btcentralplus.com [86.179.113.231]) by mail.messagingengine.com (Postfix) with ESMTPA id 680DA25074; Thu, 10 Nov 2016 11:14:26 -0500 (EST) Subject: Re: XWin server, idle, using lots of CPU time References: Cc: Jim Reisert AD1C From: Jon Turney To: cygwin@cygwin.com Message-ID: Date: Thu, 10 Nov 2016 19:58:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2016-11/txt/msg00098.txt.bz2 On 10/11/2016 02:05, Jim Reisert AD1C wrote: > I received a new laptop at work (Windows 7 Pro) and installed Cygwin > from scratch, including the Xorg server and xdg. > > Unlike my old laptop, XWIN seems to be using about 10% CPU *all the > time* (measured with Task Manager), even when there are no clients > connected to it. My ~/ home directory is the same, so the X server is > being set up the same way as before, as far as I can tell. > > The processor is an I7-6600U with two cores, two threads/core. 10% > seems rather high, given that 25% would be one fully-utilitized > thread. I even updated the Intel video driver to the latest Dell > version, dated November 1, 2016. No change in behavior. > > I've attached cygcheck.out and my X server log, but can anyone advise > how to track down the source of the problem? There does seem to be a > large number of winClipboardFlushXEvents failures in the Xwin log > file, but those are also in the log file on the old laptop. Thanks for reporting this problem. Yes, this doesn't seem right, or expected. Possibly the problem is caused by the internal WM or clipboard threads, so you might try with -noclipboard or in windowed mode, and see if you see the same load. If that's the case, maybe running with -logverbose 3 would generate a log which gives more information about what unnecessary work is being done. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple