From owner-freebsd-current@freebsd.org Mon Dec 7 23:01:11 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 9ED1D9B9325 for ; Mon, 7 Dec 2015 23:01:11 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from esa-jnhn.mail.uoguelph.ca (esa-jnhn.mail.uoguelph.ca [131.104.91.44]) by mx1.freebsd.org (Postfix) with ESMTP id 604EB1BC8 for ; Mon, 7 Dec 2015 23:01:10 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) IronPort-PHdr: 9a23:AuB06h3so8YiFUv+smDT+DRfVm0co7zxezQtwd8ZsegRIvad9pjvdHbS+e9qxAeQG96LtbQd0aGP6+jJYi8p39WoiDg6aptCVhsI2409vjcLJ4q7M3D9N+PgdCcgHc5PBxdP9nC/NlVJSo6lPwWB6kO74TNaIBjjLw09fr2zQd6MyZ3tnLnqs7ToICx2xxOFKYtoKxu3qQiD/uI3uqBFbpgL9x3Sv3FTcP5Xz247bXianhL7+9vitMU7q3cYk7sb+sVBSaT3ebgjBfwdVWx+cjN92Mq+nBXZTAKJrlAcW2ka2k5BDxLE5Re8VZf4vifSue902S3cNsrzG+MaQzOnup1qQxygrS4MNDo09SmDkMl5h6FfrReJuhtw3oPQeIHTP/MoLfCVRs8TWWcUBpUZbCdGGI7pKtJXV+c= X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BNBQCYDmZW/61jaINehQG9OFqBFIYOAoIAEwEBAQEBAQEBgQmCLYIIAQEEI1YQAgEIGAICDRkCAlcCBIhCsCmQZAEBAQEBAQQBAQEBAQEBARuBAYVThH2Hd4FEBY4fiEKPF4RDlk0CIwI+hCIghRyBBwEBAQ X-IronPort-AV: E=Sophos;i="5.20,396,1444708800"; d="scan'208";a="254738081" Received: from nipigon.cs.uoguelph.ca (HELO zcs1.mail.uoguelph.ca) ([131.104.99.173]) by esa-jnhn.mail.uoguelph.ca with ESMTP; 07 Dec 2015 18:01:09 -0500 Received: from localhost (localhost [127.0.0.1]) by zcs1.mail.uoguelph.ca (Postfix) with ESMTP id 0054815F55D; Mon, 7 Dec 2015 18:01:08 -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 0v3x9rQsSypy; Mon, 7 Dec 2015 18:01:08 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by zcs1.mail.uoguelph.ca (Postfix) with ESMTP id A7E6815F565; Mon, 7 Dec 2015 18:01:08 -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 nWNfHRhHfC5X; Mon, 7 Dec 2015 18:01:08 -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 8E55415F55D; Mon, 7 Dec 2015 18:01:08 -0500 (EST) Date: Mon, 7 Dec 2015 18:01:08 -0500 (EST) From: Rick Macklem To: Adrian Chadd Cc: Alexander Kabaev , FreeBSD Current Message-ID: <387840531.122544462.1449529268528.JavaMail.zimbra@uoguelph.ca> In-Reply-To: References: <900422043.121631608.1449496955386.JavaMail.zimbra@uoguelph.ca> <20151207091815.16e11a13@kan> <697195597.121770130.1449500982738.JavaMail.zimbra@uoguelph.ca> 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: [172.17.95.11] 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: wiNXC/ioRwiW0wz0M2NuCdmwjcpnkQ== 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: Mon, 07 Dec 2015 23:01:11 -0000 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. I have no idea if these sysctl #s are useful: kern.eventtimer.et.LAPIC.frequency: 49876422 kern.eventtimer.et.LAPIC.flags: 15 rick > (i've had to debug this a few times before.) > > > > -a >