Date: Thu, 11 Jun 2015 09:43:15 +0800 From: Yanhui Shen <shen.elf@gmail.com> To: Adrian Chadd <adrian@freebsd.org>, freebsd-stable@freebsd.org Subject: Re: High Interrupt rate since r279961 on STABLE/10 branch Message-ID: <CAEEM4v=j=4U5p1jfkjFTYee8kwF1j0DDRgkXj624936_5qLADw@mail.gmail.com> In-Reply-To: <CAJ-Vmo=%2B%2BSJpvbSP6PJhS0LCj6kbcdJa=Do_4yO-sUDe_B8tww@mail.gmail.com> References: <CAEEM4vmsVQDiRoiiknz=4hH5b6Pyq94faC6FeAR%2B1WxyapGc-w@mail.gmail.com> <CAJ-Vmo=%2B%2BSJpvbSP6PJhS0LCj6kbcdJa=Do_4yO-sUDe_B8tww@mail.gmail.com>
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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 <adrian@freebsd.org>: > 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 <shen.elf@gmail.com> 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
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