双cpu问题，帮忙看看！

wxw2004gl

dmesg中显示两个cpu：
Copyright (c) 1992-2006 The FreeBSD Project.
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The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.2-PRERELEASE #2: Thu Dec 7 17:08:25 UTC 2006
root@xxx:/usr/obj/usr/src/sys/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2392.95-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf29 Stepping = 9
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0x4400<CNTX-ID,<b14>>
Logical CPUs per core: 2
real memory = 1073676288 (1023 MB)
avail memory = 1041506304 (993 MB)
ACPI APIC Table: <IntelR AWRDACPI>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
ioapic0: Changing APIC ID to 4
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
ioapic2 <Version 2.0> irqs 48-71 on motherboard
kbd1 at kbdmux0
acpi0: <IntelR AWRDACPI> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <unknown> at device 0.1 (no driver attached)
pcib1: <ACPI PCI-PCI bridge> at device 2.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pci1: <base peripheral, interrupt controller> at device 28.0 (no driver attached)
pcib2: <ACPI PCI-PCI bridge> at device 29.0 on pci1
pci2: <ACPI PCI bus> on pcib2
em0: <Intel(R) PRO/1000 Network Connection Version - 6.2.9> port 0xa000-0xa03f mem 0xfa000000-0xfa01ffff irq 48 at device 9.0 on pci2
em0: Ethernet address: 00:0c:76:20:52:a9
pci1: <base peripheral, interrupt controller> at device 30.0 (no driver attached)
pcib3: <ACPI PCI-PCI bridge> at device 31.0 on pci1
pci3: <ACPI PCI bus> on pcib3
ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0xb000-0xb0ff,0xb400-0xb4ff mem 0xf9000000-0xf9001fff irq 24 at device 7.0 on pci3
ahd0: [GIANT-LOCKED]
aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0xb800-0xb8ff,0xbc00-0xbcff mem 0xf9002000-0xf9003fff irq 25 at device 7.1 on pci3
ahd1: [GIANT-LOCKED]
aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
pci0: <unknown> at device 2.1 (no driver attached)
uhci0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> port 0xd800-0xd81f irq 16 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> port 0xd000-0xd01f irq 19 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> port 0xd400-0xd41f irq 18 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
pcib4: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci4: <ACPI PCI bus> on pcib4
em1: <Intel(R) PRO/1000 Network Connection Version - 6.2.9> port 0xc000-0xc03f mem 0xfd000000-0xfd01ffff,0xfd020000-0xfd02ffff irq 18 at device 4.0 on pci4
em1: Ethernet address: 00:0c:76:20:52:a8
pci4: <display, VGA> at device 5.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH3 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xf000-0xf00f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
acpi_tz0: <Thermal Zone> on acpi0
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
ppc0: <Standard parallel printer port> port 0x378-0x37f,0x778-0x77b irq 7 on acpi0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model IntelliMouse Explorer, device ID 4
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xd1000-0xd27ff,0xd3000-0xd47ff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
Waiting 5 seconds for SCSI devices to settle
acd0: CDROM <ATAPI CD-ROM 52XMax/VER C.03> at ata1-master UDMA33
da0 at ahd0 bus 0 target 3 lun 0
da0: <SEAGATE ST336607LC 0006> Fixed Direct Access SCSI-3 device
da0: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da0: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C)
da1 at ahd0 bus 0 target 4 lun 0
da1: <SEAGATE ST336607LC 0006> Fixed Direct Access SCSI-3 device
da1: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da1: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C)
da2 at ahd0 bus 0 target 5 lun 0
da2: <SEAGATE ST336607LC 0006> Fixed Direct Access SCSI-3 device
da2: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da2: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C)
SMP: AP CPU #1 Launched!
Trying to mount root from ufs:/dev/da0s1a
em0: link state changed to UP
em1: link state changed to UP

但是用systat看时只有一个cpu在使用：

/0 /10 /20 /30 /40 /50 /60 /70 /80 /90 /100
root idle: cpu0 XXXXXXXXXXXXXXXXXXXXXXXXXXXX
root swi1: net XXXXXXXXXXXXXX
root irq18: em1 XXX
root irq48: em0 XX

top －S也只有一个

PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
11 root 1 171 52 0K 8K RUN 0 811:09 55.08% idle: cpu0
12 root 1 -44 -163 0K 8K RUN 0 239:58 30.08% swi1: net
31 root 1 -68 -187 0K 8K *Giant 0 43:53 6.20% irq18: em1 uhci2
21 root 1 -68 -187 0K 8K RUN 0 36:55 4.64% irq48: em0

isjfk

重新编译内核：http://www.freebsd.org/doc/zh_CN ... RNELCONFIG-SYNOPSIS
使用 SMP 内核配置文件

wxw2004gl

原帖由 isjfk 于 2006-12-8 16:22 发表
重新编译内核：http://www.freebsd.org/doc/zh_CN ... RNELCONFIG-SYNOPSIS
使用 SMP 内核配置文件

是使用的SMP内核配置啊！

isjfk

sysctl -a | grep cpu

结果？

langue

FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1

似乎是两个……

dangk

你是有两块cpu还是一颗双核的cpu?

wxw2004gl

是两颗带HTT的Xeon，但是我关了HTT
#sysctl -a | grep cpu
kern.threads.virtual_cpu: 2
kern.sched.ipiwakeup.onecpu: 0
kern.ccpu: 1948
kern.smp.maxcpus: 16
kern.smp.cpus: 2
debug.cpufreq.lowest: 0
debug.cpufreq.verbose: 0
debug.kdb.stop_cpus: 1
debug.PMAP1changedcpu: 0
hw.ncpu: 2
hw.acpi.cpu.cx_supported: C1/0
hw.acpi.cpu.cx_lowest: C1
hw.acpi.cpu.cx_usage: 100.00%
machdep.cpu_idle_hlt: 1
machdep.hlt_cpus: 2
machdep.hlt_logical_cpus: 0
machdep.logical_cpus_mask: 2
dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_PR_.CPU0
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
dev.cpu.1.%desc: ACPI CPU
dev.cpu.1.%driver: cpu
dev.cpu.1.%location: handle=\_PR_.CPU1
dev.cpu.1.%pnpinfo: _HID=none _UID=0
dev.cpu.1.%parent: acpi0

isjfk

两个 CPU 都在用，没问题的