From owner-freebsd-current@freebsd.org Tue Dec 8 20:59:51 2015 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 757E09D5DA6 for ; Tue, 8 Dec 2015 20:59:51 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from esa-annu.net.uoguelph.ca (esa-annu.mail.uoguelph.ca [131.104.91.36]) by mx1.freebsd.org (Postfix) with ESMTP id 22B95138C; Tue, 8 Dec 2015 20:59:50 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) IronPort-PHdr: 9a23:81/EPxIGPd1TAl0SudmcpTZWNBhigK39O0sv0rFitYgULPnxwZ3uMQTl6Ol3ixeRBMOAu6wC07KempujcFJDyK7JiGoFfp1IWk1NouQttCtkPvS4D1bmJuXhdS0wEZcKflZk+3amLRodQ56mNBXsq3G/pQQfBg/4fVIsYL+lRMiK14ye7KObxd76W01wnj2zYLd/fl2djD76kY0ou7ZkMbs70RDTo3FFKKx8zGJsIk+PzV6nvp/jtLYqySlbuuog+shcSu26Ov1gFf0LRAghZkIy5MujnxDHQRSO4DNIUGUcuhRSDgXP9x28WY3+5HjUrO14jRObNs6+aLk/WjCv6u8/UhrhgyQDOjsR7WbYl8F0lKIdqxv39E83+JLdfIzAbKk2RajaZ95PADMZBss= X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DQAQDqQ2dW/61jaINehA1uBr05AQ2BbhcKgj2CZkoCgXcUAQEBAQEBAQGBCYItgggBAQQBAQEgKyALEAIBCA4KAgINGQICJwEJJgIECAcEARoCBIgODa5BkGYBAQEBAQEBAQEBAQEBAQEBAQEBFgSBAYVThH2EOwEBAYM5gUQFjh+IQoUthSOER4RDlk0CHwEBQoIRHYF0IDQHhCc6gQcBAQE X-IronPort-AV: E=Sophos;i="5.20,400,1444708800"; d="scan'208";a="256494513" Received: from nipigon.cs.uoguelph.ca (HELO zcs1.mail.uoguelph.ca) ([131.104.99.173]) by esa-annu.net.uoguelph.ca with ESMTP; 08 Dec 2015 15:59:44 -0500 Received: from localhost (localhost [127.0.0.1]) by zcs1.mail.uoguelph.ca (Postfix) with ESMTP id 1E2EC15F574; Tue, 8 Dec 2015 15:59:44 -0500 (EST) Received: from zcs1.mail.uoguelph.ca ([127.0.0.1]) by localhost (zcs1.mail.uoguelph.ca [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id uP-l8efcxwNA; Tue, 8 Dec 2015 15:59:43 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by zcs1.mail.uoguelph.ca (Postfix) with ESMTP id BEC5715F577; Tue, 8 Dec 2015 15:59:43 -0500 (EST) X-Virus-Scanned: amavisd-new at zcs1.mail.uoguelph.ca Received: from zcs1.mail.uoguelph.ca ([127.0.0.1]) by localhost (zcs1.mail.uoguelph.ca [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id OoVAlUsGW2fZ; Tue, 8 Dec 2015 15:59:43 -0500 (EST) Received: from zcs1.mail.uoguelph.ca (zcs1.mail.uoguelph.ca [172.17.95.18]) by zcs1.mail.uoguelph.ca (Postfix) with ESMTP id A5AD315F571; Tue, 8 Dec 2015 15:59:43 -0500 (EST) Date: Tue, 8 Dec 2015 15:59:43 -0500 (EST) From: Rick Macklem To: John Baldwin Cc: freebsd-current@freebsd.org, Adrian Chadd , Alexander Kabaev Message-ID: <3445221.124330583.1449608383662.JavaMail.zimbra@uoguelph.ca> In-Reply-To: <1558819.MnyjzOdus5@ralph.baldwin.cx> References: <900422043.121631608.1449496955386.JavaMail.zimbra@uoguelph.ca> <387840531.122544462.1449529268528.JavaMail.zimbra@uoguelph.ca> <1558819.MnyjzOdus5@ralph.baldwin.cx> Subject: Re: slow screen updates on laptop console (i386) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [172.17.95.10] X-Mailer: Zimbra 8.0.9_GA_6191 (ZimbraWebClient - FF42 (Win)/8.0.9_GA_6191) Thread-Topic: slow screen updates on laptop console (i386) Thread-Index: jp3IotxEfAEIl4zhz+gLZHssvC9LIw== X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Dec 2015 20:59:51 -0000 John Baldwin wrote: > On Monday, December 07, 2015 06:01:08 PM Rick Macklem wrote: > > Adrian Chadd wrote: > > > Hi, > > > > > > ok. please file a bug for that. It may be something to do with the > > > hardware and sleep states and skipping wakeups/interrupts or > > > something. > > > > > > Please try using the default again (LAPIC?) and set > > > kern.eventtimer.periodic=1. See if that fixes it. > > > > > Actually made it worse. Instead of being intermittently slow, it was > > almost constantly slow. > > Try disabling C-states if they are enabled. If you have a BIOS option > for C1E you might need to disable that as well. If this fixes it, then > there isn't a really viable solution in software, and you might prefer > to use the RTC to get the power savings from C-states. > Oh, I do see stuff like: hw.acpi.cpu.cx_lowest: C2 and dev.cpu.0.cx_supported: C1/1/1 C2/2/1 C3/3/85 Is there a sysctl to disable "C states"? Thanks, rick ps: Like I said, I don't care, but maybe Adrian would like me to try settings? > -- > John Baldwin > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >