From owner-freebsd-stable@FreeBSD.ORG Wed Jun 10 16:38:20 2015 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id AB51DA53 for ; Wed, 10 Jun 2015 16:38:20 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-ig0-x232.google.com (mail-ig0-x232.google.com [IPv6:2607:f8b0:4001:c05::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 74FA918E4 for ; Wed, 10 Jun 2015 16:38:20 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: by igbsb11 with SMTP id sb11so37657564igb.0 for ; Wed, 10 Jun 2015 09:38:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=2dMg0YEH6w8O2RHVTkS9ncqj9qiSPt/vLv+R3tpAlbc=; b=1GN+Fj4M83KNDQaotx/a5Mb7vekBJCByOwf9t7pBx5kOBv65ZkfgqSISXgznyTfrmc O7IvR4fQIUryB+nAqy2eeHP6/n8ahMwElgo9DmK+PsgGxlEj4cxMMjFV75WrpvNw0UOb f+N6El5eDrga91heRvVMhn2lN13wVIHDx8opiAeZO/bnVaIN0FcCYsdSmvKVPWA+uZJr fY6kCgwXSEU3oT2PPC5OtuLIVOuC46bpmPLoM6MH2u5BKYMtaqPOW++QYtRMlWn8cHNk FyC7eyIgX2uophTmIzxkNr3kKDJll7B1aS0hE84n8Y6Z1/VJ0Qt3dGZ+Ru2hBN0rGElq Iuig== MIME-Version: 1.0 X-Received: by 10.107.5.210 with SMTP id 201mr5380992iof.88.1433954299830; Wed, 10 Jun 2015 09:38:19 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.36.38.133 with HTTP; Wed, 10 Jun 2015 09:38:19 -0700 (PDT) In-Reply-To: References: Date: Wed, 10 Jun 2015 09:38:19 -0700 X-Google-Sender-Auth: sO-UMG0Njxa5Lf0DWjxpfv5OXac Message-ID: Subject: Re: High Interrupt rate since r279961 on STABLE/10 branch From: Adrian Chadd To: Yanhui Shen Cc: Henry Hu , FreeBSD Stable Mailing List Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Jun 2015 16:38:20 -0000 Hi, There was an update to freebsd-head a few days ago from hans - it disabled PCI interrupts for VGA until a driver claims it. See if that helps? -a b On 10 June 2015 at 05:33, Yanhui Shen wrote: > Hi, > > I noticed the interrupt rate of my FreeBSD system is very high (~35%) after > upgrade from r279138 to r284205. > > To find out which revision cause this problem, > I used a binary search manner and compiled the kernel 11 times. > Finally I located to r279961, the interruption rate is abnormal since this > revision. > > Do you have any idea about this issue? > > ( I'm temporarily using r279958 kernel with r284205 base system, everything > is fine.) > > -------------------------------- > > Device: ThinkPad R400 (Product ID: 278225C) > CPU: Intel Core 2 Duo processor T6570 (2.1 GHz) > GPU: Intel Integrated Graphics 4500MHD > > Output of "vmstat -i" with r284205 kernel (abnormal): > interrupt total rate > irq1: atkbd0 1607 1 > irq9: acpi0 131958 104 > irq12: psm0 4281 3 > irq16: uhci3 239899376 189643 > irq20: hpet0 uhci0 1426118 1127 > irq21: uhci1 40315 31 > irq23: ehci0 33 0 > irq256: vgapci0 6059 4 > irq257: em0 49220 38 > irq258: hdac0 62 0 > irq260: ahci0:ch0 17217 13 > irq261: ahci0:ch1 23 0 > Total 241576269 190969 > > Output of "vmstat -i" with r279958 kernel (normal): > interrupt total rate > irq1: atkbd0 48155 3 > irq9: acpi0 1581468 105 > irq12: psm0 209484 13 > irq19: ehci1 48099 3 > irq20: hpet0 uhci0 17385585 1156 > irq21: uhci1 680884 45 > irq23: ehci0 31 0 > irq256: vgapci0 2611430 173 > irq257: em0 1342009 89 > irq258: hdac0 602220 40 > irq260: ahci0:ch0 236313 15 > irq261: ahci0:ch1 27 0 > Total 24745705 1646 > > The revision: > https://svnweb.freebsd.org/base?view=revision&revision=279961 > > -------------------------------- > > Best regards, > Yanhui Shen > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"