From owner-freebsd-stable@FreeBSD.ORG Thu Jun 11 01:43:16 2015 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 59C67996; Thu, 11 Jun 2015 01:43:16 +0000 (UTC) (envelope-from shen.elf@gmail.com) Received: from mail-ie0-x241.google.com (mail-ie0-x241.google.com [IPv6:2607:f8b0:4001:c03::241]) (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 23A95176D; Thu, 11 Jun 2015 01:43:16 +0000 (UTC) (envelope-from shen.elf@gmail.com) Received: by iery20 with SMTP id y20so2686975ier.1; Wed, 10 Jun 2015 18:43:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=rA5p4AucG8k8i52P4LCsIzzkIjWiZuT6RnZDBH33DL0=; b=dKN2ur9+qKkoXh7ajyUjiYF+UZmjFAlCpZeGA94af/oQ1Nb8IDCmSG6S2rJmVR3E6T eOInEYf7Bm8hVfBakdSkUeX6SW6erdRfGQ4ylZ9fXnLQ5rjs+4fvLiRPF6NzWm1LatQG 0ciOLvPM6X6RrhlIPuB4ogj7fV66r9WUbMx5qRmHtoI23vZyxOzE+DNxgsvbCJEl7cqi IIW6vlQjD8mwoDLV0JrNwojv96LwQM4Zg0R9/rNPaQeHJP6EHKt/KexXe/yCxuDQyvTd jnWPdngyhplSDlQAEfwhKUOjDdUpJAsRxRNqBW+9fdlZtAObLrH+2UUETJ+mnYpvTqLG x97Q== MIME-Version: 1.0 X-Received: by 10.107.165.210 with SMTP id o201mr8312259ioe.2.1433986995520; Wed, 10 Jun 2015 18:43:15 -0700 (PDT) Received: by 10.107.15.157 with HTTP; Wed, 10 Jun 2015 18:43:15 -0700 (PDT) In-Reply-To: References: Date: Thu, 11 Jun 2015 09:43:15 +0800 Message-ID: Subject: Re: High Interrupt rate since r279961 on STABLE/10 branch From: Yanhui Shen To: Adrian Chadd , freebsd-stable@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 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: Thu, 11 Jun 2015 01:43:16 -0000 Hi, Thanks, it works! https://svnweb.freebsd.org/base/head/sys/dev/pci/vga_pci.c?r1=284012&r2=284011&pathrev=284012 2015-06-11 0:38 GMT+08:00 Adrian Chadd : > 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 > " > -- Best regards, Yanhui Shen