Date: Tue, 5 Jun 2012 21:48:53 +0200 From: Albert Shih <Albert.Shih@obspm.fr> To: Matt Thyer <matt.thyer@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Load when idl on stable Message-ID: <20120605194853.GB9945@pcjas.obspm.fr> In-Reply-To: <CACM2%2B-7DjxL2kruwnro_ajfWP99oR6Hw=p3LVxS_5BeA3tkSEQ@mail.gmail.com> References: <20120531202334.GA27926@pcjas.obspm.fr> <CACM2%2B-7DjxL2kruwnro_ajfWP99oR6Hw=p3LVxS_5BeA3tkSEQ@mail.gmail.com>
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Le 04/06/2012 ? 06:22:34+0930, Matt Thyer a écrit > Hi, > Is this due to a high rate of interrupts ? No idea ;-) > i.e. can you see this with "systat -vm 1" with a large number in the "intr" > field. Well I don't known what you mean by «high rate», so I make a compraison between my desktop and my laptop. On the laptop (where the load is always high) I got ~500- 650 total Interrupts with ~490-500 from hpet0 uhci On my desktop (load is ~0) I got ~340- 360 total Interrupts with 320-350 from hpet0 20 > > If yes, run "vmstat -i" to see what interrupt is being hit. On my laptop (uptime ~ 1h): vmstat -i interrupt total rate irq1: atkbd0 7240 1 irq9: acpi0 7 0 irq12: psm0 44037 10 irq14: ata0 6590 1 irq17: wpi0 683770 155 irq18: atapci1 15447 3 irq19: fwohci0 2 0 irq20: hpet0 uhci0* 2888037 656 irq22: ehci0 uhci4 2 0 irq256: hdac0 270090 61 Total 3915222 890 On my destkop (uptime 5 days) interrupt total rate irq1: atkbd0 239742 0 irq12: psm0 999224 2 irq16: uhci0 4062873 9 irq17: fwohci0++ 1 0 irq20: hpet0 222779529 500 irq22: uhci2 ehci0 222967 0 irq24: vgapci0 972589 2 irq256: hdac0 9881473 22 irq257: bge0 8422313 18 irq258: ahci0 5744209 12 Total 253324920 568 > > Then tell us what hardware is on that irq (from grep irq /var/run/dmesg.boot). Here on the laptop: grep irq /var/run/dmesg.boot ioapic0 <Version 2.0> irqs 0-23 on motherboard atrtc0: <AT realtime clock> port 0x70-0x71,0x72-0x77 irq 8 on acpi0 attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 2 on acpi0 vgapci0: <VGA-compatible display> port 0xdf00-0xdf7f mem 0xf5000000-0xf5ffffff,0xe0000000-0xefffffff,0xf2000000-0xf3ffffff irq 16 at device 0.0 on pci1 uhci0: <Intel 82801H (ICH8) USB controller USB-D> port 0x6f20-0x6f3f irq 20 at device 26.0 on pci0 uhci1: <Intel 82801H (ICH8) USB controller USB-E> port 0x6f00-0x6f1f irq 21 at device 26.1 on pci0 ehci0: <Intel 82801H (ICH8) USB 2.0 controller USB2-B> mem 0xfed1c400-0xfed1c7ff irq 22 at device 26.7 on pci0 hdac0: <Intel 82801H HDA Controller> mem 0xf6ffc000-0xf6ffffff irq 21 at device 27.0 on pci0 wpi0: <Intel(R) PRO/Wireless 3945ABG> mem 0xf1fff000-0xf1ffffff irq 17 at device 0.0 on pci12 bge0: <Broadcom NetXtreme Gigabit Ethernet Controller, ASIC rev. 0x00a200> mem 0xf1bf0000-0xf1bfffff irq 17 at device 0.0 on pci9 uhci2: <Intel 82801H (ICH8) USB controller USB-A> port 0x6f80-0x6f9f irq 20 at device 29.0 on pci0 uhci3: <Intel 82801H (ICH8) USB controller USB-B> port 0x6f60-0x6f7f irq 21 at device 29.1 on pci0 uhci4: <Intel 82801H (ICH8) USB controller USB-C> port 0x6f40-0x6f5f irq 22 at device 29.2 on pci0 ehci1: <Intel 82801H (ICH8) USB 2.0 controller USB2-A> mem 0xfed1c000-0xfed1c3ff irq 20 at device 29.7 on pci0 fwohci0: <1394 Open Host Controller Interface> mem 0xf1aff800-0xf1afffff irq 19 at device 1.0 on pci3 atapci0: <Intel ICH8M UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x6fa0-0x6faf irq 16 at device 31.1 on pci0 atapci1: <Intel ICH8M SATA300 controller> port 0x6eb0-0x6eb7,0x6eb8-0x6ebb,0x6ec0-0x6ec7,0x6ec8-0x6ecb,0x6ee0-0x6eef,0xeff0-0xefff irq 18 at device 31.2 on pci0 atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64,0x62,0x66 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 psm0: <PS/2 Mouse> irq 12 on atkbdc0 Regards. JAS -- Albert SHIH DIO bâtiment 15 Observatoire de Paris 5 Place Jules Janssen 92195 Meudon Cedex Téléphone : 01 45 07 76 26/06 86 69 95 71 xmpp: jas@jabber.obspm.fr Heure local/Local time: mar 5 jui 2012 21:38:47 CEST
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