intel i7 and Hyperthreading

Mike Tancsa mike at sentex.net
Fri Dec 19 14:14:48 PST 2008


Just got our first board to play around with and unlike in the past, 
having hyperthreading enabled seems to help performance.... At least 
in buildworld tests.

doing a make -j4 vs -j6 make -j8 vs -j10 gives

-j  buildworld time    % improvement over -j4
4       13:57
6       12:11            13%
8       11:32            18%
10      11:43            17%


dmesg below of the hardware... The CPU seems to run fairly cool, but 
the board has a lot of nasty hot heatsinks

eg. running 8 burnP6 procs

0[ns3c]# sysctl -a | grep temperature
dev.cpu.0.temperature: 67
dev.cpu.1.temperature: 67
dev.cpu.2.temperature: 65
dev.cpu.3.temperature: 65
dev.cpu.4.temperature: 66
dev.cpu.5.temperature: 66
dev.cpu.6.temperature: 64
dev.cpu.7.temperature: 64
0[ns3c]#

vs idle

dev.cpu.0.temperature: 46
dev.cpu.1.temperature: 46
dev.cpu.2.temperature: 42
dev.cpu.3.temperature: 42
dev.cpu.4.temperature: 44
dev.cpu.5.temperature: 44
dev.cpu.6.temperature: 40
dev.cpu.7.temperature: 40

Copyright (c) 1992-2008 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
         The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 7.1-PRERELEASE #0: Fri Dec 19 19:48:15 EST 2008
     mdtancsa at ns3c.recycle.net:/usr/obj/usr/src/sys/recycle
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Core(TM) i7 CPU         920  @ 2.67GHz (2666.78-MHz 
686-class CPU)
   Origin = "GenuineIntel"  Id = 0x106a4  Stepping = 4
   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=0x98e3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,POPCNT>
   AMD Features=0x28100000<NX,RDTSCP,LM>
   AMD Features2=0x1<LAHF>
   Cores per package: 8
   Logical CPUs per core: 2
real memory  = 2138992640 (2039 MB)
avail memory = 2084880384 (1988 MB)
ACPI APIC Table: <INTEL  DX58SO  >
FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
  cpu0 (BSP): APIC ID:  0
  cpu1 (AP): APIC ID:  1
  cpu2 (AP): APIC ID:  2
  cpu3 (AP): APIC ID:  3
  cpu4 (AP): APIC ID:  4
  cpu5 (AP): APIC ID:  5
  cpu6 (AP): APIC ID:  6
  cpu7 (AP): APIC ID:  7
ACPI Warning (tbfadt-0505): Optional field "Pm2ControlBlock" has zero 
address or length:        0     450/0 [20070320]
ioapic0 <Version 2.0> irqs 0-23 on motherboard
lapic0: Forcing LINT1 to edge trigger
kbd1 at kbdmux0
acpi0: <INTEL DX58SO> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
acpi_button0: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> irq 16 at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> irq 16 at device 3.0 on pci0
pci2: <ACPI PCI bus> on pcib2
3ware device driver for 9000 series storage controllers, version: 3.70.05.001
twa0: <3ware 9000 series Storage Controller> port 0x3000-0x30ff mem 
0xf4000000-0xf5ffffff,0xe4300000-0xe4300fff irq 16 at device 0.0 on pci2
twa0: [ITHREAD]
twa0: INFO: (0x04: 0x003C): Initialize paused: unit=0
twa0: INFO: (0x15: 0x1300): Controller details:: Model 9650SE-2LP, 2 
ports, Firmware FE9X 4.06.00.004, BIOS BE9X 4.05.00.015
pcib3: <ACPI PCI-PCI bridge> irq 16 at device 7.0 on pci0
pci3: <ACPI PCI bus> on pcib3
pci0: <base peripheral, interrupt controller> at device 16.0 (no 
driver attached)
pci0: <base peripheral, interrupt controller> at device 16.1 (no 
driver attached)
pci0: <base peripheral, interrupt controller> at device 20.0 (no 
driver attached)
pci0: <base peripheral, interrupt controller> at device 20.1 (no 
driver attached)
pci0: <base peripheral, interrupt controller> at device 20.2 (no 
driver attached)
pci0: <base peripheral, interrupt controller> at device 20.3 (no 
driver attached)
em0: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x40e0-0x40ff 
mem 0xe4400000-0xe441ffff,0xe4422000-0xe4422fff irq 20 at device 25.0 on pci0
em0: Using MSI interrupt
em0: [FILTER]
em0: Ethernet address: 00:1c:c0:92:d5:83
uhci0: <UHCI (generic) USB controller> port 0x40c0-0x40df irq 16 at 
device 26.0 on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
usb0: <UHCI (generic) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: <UHCI (generic) USB controller> port 0x40a0-0x40bf irq 21 at 
device 26.1 on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
usb1: <UHCI (generic) USB controller> on uhci1
usb1: USB revision 1.0
uhub1: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 2 ports with 2 removable, self powered
uhci2: <UHCI (generic) USB controller> port 0x4080-0x409f irq 19 at 
device 26.2 on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb2: <UHCI (generic) USB controller> on uhci2
usb2: USB revision 1.0
uhub2: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2
uhub2: 2 ports with 2 removable, self powered
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xe4421000-0xe44213ff 
irq 18 at device 26.7 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb3: EHCI version 1.0
usb3: companion controllers, 2 ports each: usb0 usb1 usb2
usb3: <EHCI (generic) USB 2.0 controller> on ehci0
usb3: USB revision 2.0
uhub3: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb3
uhub3: 6 ports with 6 removable, self powered
pci0: <multimedia> at device 27.0 (no driver attached)
pcib4: <ACPI PCI-PCI bridge> irq 17 at device 28.0 on pci0
pci4: <ACPI PCI bus> on pcib4
pcib5: <ACPI PCI-PCI bridge> irq 16 at device 28.1 on pci0
pci5: <ACPI PCI bus> on pcib5
bge0: <HPQ 10/100/1000 Copper Based Gigabit Adapter, ASIC rev. 
0x4001> mem 0xe4200000-0xe420ffff irq 17 at device 0.0 on pci5
miibus0: <MII bus> on bge0
brgphy0: <BCM5750 10/100/1000baseTX PHY> PHY 1 on miibus0
brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
bge0: Ethernet address: 00:10:18:14:15:12
bge0: [ITHREAD]
pcib6: <ACPI PCI-PCI bridge> irq 17 at device 28.4 on pci0
pci6: <ACPI PCI bus> on pcib6
atapci0: <Marvell ATA controller> port 
0x2018-0x201f,0x2024-0x2027,0x2010-0x2017,0x2020-0x2023,0x2000-0x200f 
mem 0xe4100000-0xe41003ff irq 16 at device 0.0 on pci6
atapci0: [ITHREAD]
ata2: <ATA channel 0> on atapci0
ata2: [ITHREAD]
ata3: <ATA channel 1> on atapci0
ata3: [ITHREAD]
uhci3: <UHCI (generic) USB controller> port 0x4060-0x407f irq 23 at 
device 29.0 on pci0
uhci3: [GIANT-LOCKED]
uhci3: [ITHREAD]
usb4: <UHCI (generic) USB controller> on uhci3
usb4: USB revision 1.0
uhub4: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb4
uhub4: 2 ports with 2 removable, self powered
uhci4: <UHCI (generic) USB controller> port 0x4040-0x405f irq 19 at 
device 29.1 on pci0
uhci4: [GIANT-LOCKED]
uhci4: [ITHREAD]
usb5: <UHCI (generic) USB controller> on uhci4
usb5: USB revision 1.0
uhub5: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb5
uhub5: 2 ports with 2 removable, self powered
uhci5: <UHCI (generic) USB controller> port 0x4020-0x403f irq 18 at 
device 29.2 on pci0
uhci5: [GIANT-LOCKED]
uhci5: [ITHREAD]
usb6: <UHCI (generic) USB controller> on uhci5
usb6: USB revision 1.0
uhub6: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb6
uhub6: 2 ports with 2 removable, self powered
ehci1: <EHCI (generic) USB 2.0 controller> mem 0xe4420000-0xe44203ff 
irq 23 at device 29.7 on pci0
ehci1: [GIANT-LOCKED]
ehci1: [ITHREAD]
usb7: EHCI version 1.0
usb7: companion controllers, 2 ports each: usb4 usb5 usb6
usb7: <EHCI (generic) USB 2.0 controller> on ehci1
usb7: USB revision 2.0
uhub7: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb7
uhub7: 6 ports with 6 removable, self powered
pcib7: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci7: <ACPI PCI bus> on pcib7
vgapci0: <VGA-compatible display> port 0x1000-0x10ff mem 
0xe2000000-0xe3ffffff,0xe0000000-0xe1ffffff irq 18 at device 2.0 on pci7
fwohci0: <Texas Instruments TSB43AB22/A> mem 
0xe4004000-0xe40047ff,0xe4000000-0xe4003fff irq 19 at device 3.0 on pci7
fwohci0: [FILTER]
fwohci0: OHCI version 1.10 (ROM=0)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 00:90:27:00:02:39:70:e3
fwohci0: Phy 1394a available S400, 2 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 02:90:27:39:70:e3
fwe0: Ethernet address: 02:90:27:39:70:e3
fwip0: <IP over FireWire> on firewire0
fwip0: Firewire address: 00:90:27:00:02:39:70:e3 @ 0xfffe00000000, 
S400, maxrec 2048
dcons_crom0: <dcons configuration ROM> on firewire0
dcons_crom0: bus_addr 0x102c000
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwohci0: Initiate bus reset
fwohci0: BUS reset
fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci1: <Intel ICH10 SATA300 controller> port 
0x4158-0x415f,0x416c-0x416f,0x4150-0x4157,0x4168-0x416b,0x4130-0x413f,0x4120-0x412f 
irq 19 at device 31.2 on pci0
atapci1: [ITHREAD]
ata4: <ATA channel 0> on atapci1
ata4: [ITHREAD]
ata5: <ATA channel 1> on atapci1
ata5: [ITHREAD]
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
atapci2: <Intel ICH10 SATA300 controller> port 
0x4148-0x414f,0x4164-0x4167,0x4140-0x4147,0x4160-0x4163,0x4110-0x411f,0x4100-0x410f 
irq 18 at device 31.5 on pci0
atapci2: [ITHREAD]
ata6: <ATA channel 0> on atapci2
ata6: [ITHREAD]
ata7: <ATA channel 1> on atapci2
ata7: [ITHREAD]
cpu0: <ACPI CPU> on acpi0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
est1: <Enhanced SpeedStep Frequency Control> on cpu1
p4tcc1: <CPU Frequency Thermal Control> on cpu1
cpu2: <ACPI CPU> on acpi0
est2: <Enhanced SpeedStep Frequency Control> on cpu2
p4tcc2: <CPU Frequency Thermal Control> on cpu2
cpu3: <ACPI CPU> on acpi0
est3: <Enhanced SpeedStep Frequency Control> on cpu3
p4tcc3: <CPU Frequency Thermal Control> on cpu3
cpu4: <ACPI CPU> on acpi0
est4: <Enhanced SpeedStep Frequency Control> on cpu4
p4tcc4: <CPU Frequency Thermal Control> on cpu4
cpu5: <ACPI CPU> on acpi0
est5: <Enhanced SpeedStep Frequency Control> on cpu5
p4tcc5: <CPU Frequency Thermal Control> on cpu5
cpu6: <ACPI CPU> on acpi0
est6: <Enhanced SpeedStep Frequency Control> on cpu6
p4tcc6: <CPU Frequency Thermal Control> on cpu6
cpu7: <ACPI CPU> on acpi0
est7: <Enhanced SpeedStep Frequency Control> on cpu7
p4tcc7: <CPU Frequency Thermal Control> on cpu7
orm0: <ISA Option ROMs> at iomem 
0xc0000-0xc7fff,0xc8000-0xc9fff,0xca000-0xcafff,0xcb000-0xccfff,0xcd800-0xce7ff 
pnpid ORM0000 on isa0
ata0 at port 0x1f0-0x1f7,0x3f6 irq 14 on isa0
ata0: [ITHREAD]
ata1 at port 0x170-0x177,0x376 irq 15 on isa0
ata1: [ITHREAD]
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
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
firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
firewire0: bus manager 0 (me)
ad8: 76319MB <Seagate ST380811AS 3.AAE> at ata4-master SATA150
da0 at twa0 bus 0 target 0 lun 0
da0: <AMCC 9650SE-2LP DISK 4.06> Fixed Direct Access SCSI-5 device
da0: 100.000MB/s transfers
da0: 953664MB (1953103872 512 byte sectors: 255H 63S/T 121575C)
lapic3: Forcing LINT1 to edge trigger
SMP: AP CPU #3 Launched!
lapic1: Forcing LINT1 to edge trigger
SMP: AP CPU #1 Launched!
lapic4: Forcing LINT1 to edge trigger
SMP: AP CPU #4 Launched!
lapic6: Forcing LINT1 to edge trigger
SMP: AP CPU #6 Launched!
lapic5: Forcing LINT1 to edge trigger
SMP: AP CPU #5 Launched!
lapic2: Forcing LINT1 to edge trigger
SMP: AP CPU #2 Launched!
lapic7: Forcing LINT1 to edge trigger
SMP: AP CPU #7 Launched!
ukbd0: <CHESEN USB Keyboard, class 0/0, rev 1.10/1.10, addr 2> on uhub4
kbd2 at ukbd0
uhid0: <CHESEN USB Keyboard, class 0/0, rev 1.10/1.10, addr 2> on uhub4
Trying to mount root from ufs:/dev/da0s1a
twa0: INFO: (0x04: 0x000C): Initialize started: unit=0
ukbd0: at uhub4 port 1 (addr 2) disconnected
ukbd0: detached
uhid0: at uhub4 port 1 (addr 2) disconnected
uhid0: detached
ukbd0: <CHESEN USB Keyboard, class 0/0, rev 1.10/1.10, addr 2> on uhub4
kbd2 at ukbd0
uhid0: <CHESEN USB Keyboard, class 0/0, rev 1.10/1.10, addr 2> on uhub4



--------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike at sentex.net
Providing Internet since 1994                    www.sentex.net
Cambridge, Ontario Canada                         www.sentex.net/mike



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