Intel Xeon Hyper Threading

Hi there,
Any experienxes with $SUBJECT and Solaris 10?
How stable is hyper threading support, and how much does it degrade performance, if I switch it off?
I've read about the security vulnerability with hyper threading, but I don't really care about it. I'm more interested in performance/stability.
Thanks,
Imre Csatlos

CPU_COUNT is a parameter dinamically adusted by the Oracle instance. Oracle perfectly supports hyper threading and there is no need to change the value of this parameter.

Similar Messages

Intel HT (Hyper-Threading) BIOS 1.9?

Sup People!
My Intel HT (Hyper-Threading) don't work right now, what to do?
I was told that I need the new BIOS 1.9 for HT to work?
I have: Intel P4c with HT
Intel 875P with HT
MS Windows XP Professional Version 2002 & SP 1
There is no option button in the BIOS 1.8 for HT!
What do I need to do? Please Help
TaZ ...
Also I have a new OVER CLOCK speed! MY 875P NEO @3420MHz/1140MHz FSB !!
It's a old thread so look at post #7
http://www.msi.com.tw/program/service/forum/index.php?sid=&postid=188033#post188033
TaZ

Sup & THX people for all the INFO!
Hay Schiers,
"I can switch it on and off like I want. The option to allow/disallow it is about
MP (advanced settings) and the version to support."
I have a Intel SL6Z3 Pentium 4c 2.4GHz 800MHz FSB with HT. This new chip come's with the NEW MO core stepping. (Costa Rica) Now Im trying to over clock this Vcore 1.70v CPU to 275MHz FSB (3.3GHz/1.1GHz FSB) 5:4 ratio, Ram 2.70v DDR440 - 220MHz @CL2.0-3-3-7-8 with my PC3500, AND WITH HT (HYPER-THREADING)
Right now my Vcore 1.60v CPU and 225MHz FSB @(2.7GHz/900MHz FSB) 1:1 ratio Ram 2.70v DDR450 - 225MHz @CL2.5-3-3-7-8 and NO HT (Hyper-Threading) On Intel STOCK Air.
I have also tryed Vcore 1.6 CPU and 260MHz FSB @(3.12GHz/1.04GHz FSB) 5:4 ratio, RAM 2.60v DDR416 - 208MHz @CL2.0-3-3-6-8 and NO HT (Hyper-Threading) On Intel STOCK Air.
http://www.msi.com.tw/program/service/forum/index.php?threadid=32697&sid=
PLEASE HELP ME! GET HT (Hyper-Threading) WORKING!
Please show how to do it step by step please
I have BIOS 1.8 (Bugy) Need Bios 1.9 for new microcode update to get HT properly recognized with an option!
OR IS THERE ANOTHER OPTION?
TaZ

Disable Intel CPU Hyper threading in Oracle RAC environment

Dear Expert,
Does disable CPU hyper threading will have direct impact or maybe unexpected behavior to Oracle RAC database?
Actually the background of this question is we have many received packet queuing on the network layer waiting to be processed. Investigation leads to the processor utilization which shows that many processor are still in idle state or not used when the other processors are busy processing incoming request.
I have visited some oracle note like
CPU Count Consideration for Oracle Parameter Setting When Using Hyper-Threading Technology (Doc ID 289870.1)
Oracle and Hyper-Threading (Doc ID 205089.1)
Using PROCESSOR_GROUP_NAME to bind a database instance to CPUs or NUMA nodes (Doc ID 1585184.1)
These document already give useful information but i wonder if there is any possibilities risk or another consideration of disabling cpu hyper threading.
Please let me know if any other information required.
Thanks.
Best Regards,
Jolly

As far as I know it is set as cpu architecture and mobile chips don't have the option. Not 100% as I've never needed to do it.
Better bet would be to check Intel ark and forums with them I expect.

Oracle support Intel Hyper Threading??

Does anyone know if the Oracle 9i and 10g database supports Intel's new Hyper Threading technology???

Cody,
Please read Oracle's Note:205089.1 on metalink.

Oracle 9i R2 and Hyper threading

Hi
This is a matter of confusion to me, I've tested Oracle 9.2.0.1.0 on several machines with Hyper threading 1 CPU Intel and Dual Xeon servers.
When installing oracle the CPU_COUNT and PARALLEL_THREAD_PER_CPU parameters are set automatically.
ie: Intel 3.0 HT
CPU_COUNT = 2
PARALLEL_THREAD_PER_CPU = 2
Dual Xeon 2.8 HT
CPU_COUNT = 2
PARALLEL_THREAD_PER_CPU = 4
with this default settings our application is dragging it's feet (developped on 4.5 upgraded to 6i client/server)
But if we set
CPU_COUNT = 1
PARALLEL_THREAD_PER_CPU = 2
for the Intel the app goes lightspeed
and
CPU_COUNT = 1
PARALLEL_THREAD_PER_CPU = 1
for the xeon again lightspeed
I didn't face this problem with non HyperThreasding CPUs
My question:
Why is this anomoly, what's the workaround without changing the CPU_COUT parameter?
did anybody else face any problem like this? does this happen in 10g???
Thanks in Advance
Tony S. Garabedian

Any suggestions? Any ideas??

Is Hyper-threading enabled on the i5 and i7 iMacs

I am interested in upgrading to a 27" i5 or i7. According to intels site all i-core processors support Hyper-threading. At work I use a quad core Xeon on a HP computer with Windows 7. The system reports that I have 8 cores in performance monitor as it sees each core as 2 cores with Hyper-threading enabled in the Bios.
Does Apple enable hyper-theading in EFI and does Mac OSX see 8 cores in the activity monitor and correctly show the activity of each thread? I suspect if it only shows 4 cores that hyper-threading is not activated on the iMacs. I want to get the most out of the processors capabilities since I am paying a premium for it and so I wont get a current generation machine if it is crippling the processors ability to run 2 threads per core as intel advertises. I would expect with Grand Central in 10.6 that hyper-threading would dramatically increase performance.
Can someone answer this question definitively?

Intels site states clearly that the i3 i5 and i7 all support hyper threading.. if only the i7 supports it on the iMac then apple is crippling the chip..
http://www.intel.com/products/processor/corei5/index.htm
http://www.intel.com/products/processor/corei3/index.htm
So is apple crippling the chip????

Parameter cpu_count and Intel Xeon

Hello,
I have server HP ProLiant 380DL with physical 2 processors Intel Xeon 3.06GHz with Hyper Threading. My OS Linux show me that there are 4 processors (because of the hyper threading). Oracle parameter cpu_count has value 4.
Have anybody experience with the same processors and right settings of parameter cpu_count. (I know that oracle documentation recommends that don't change this parameter).
Thanks for advice

CPU_COUNT is a parameter dinamically adusted by the Oracle instance. Oracle perfectly supports hyper threading and there is no need to change the value of this parameter.

Unable to detect Hyper Threading of CPU SL6WE 3.2 in MSI-865PE Neo2

Hi! I am new to this forum and need some help. I have just installed a Intel Pentium 4 3.2GHz Northwood SL6WE 478 800MHz/512k . I bought this on e-bay and understand that this cpu supports hyper threading. I have enabled hyper threading in the bios, but only see one cpu in Widows System Properties and only one cpu in Windows Task Manager. I had a 2.6 cpu installed previously, no hyper threading. My motherboard is an MSI-865PE Neo2 version 1.1, 2GB Ram ( 4x512 ?), Thermaltke TR2-430W power supply, Freezer 4 Arctic Cooler, Nvidia GeForce 6600, LG DVD RAM burner, 16x DVD ROM, WD 250 gig and an Hitachi 80 gig hard drive. I also used Arctic Silver 5 thermal paste (after using Arcticclean and Surface Purifier). Have I missed somethig? Would appreciate help in solving why I have no hyper threading.

200 7-3-3-2.5 Ultra Turbo and 212 5-3-3-2.5 Ultra Turbo is a
no boot. Thinks ultra-turbo tries to set mem timings to
2-2-2-5 below 218FSB and my memory can't do that.
Turbo boots ok. Normal setting disabled PAT.
200 2.5-3-3-7 Turbo PAT on 4.6GB/s
200 2.5-3-3-7 Normal PAT off 4.2GB/s
212 2.5-3-3-5 Turbo PAT on 4.8GB/s
212 2.5-3-3-5 Normal Pat off 4.5GB/s
Also tried 250 1:1, not prime95 stable
250 2.5-3-3-7 Ultra-turbo 6GB/s
I think pat is disabled above 218FSB on
1:1 and 5:4 setting, but not on 4:5 setting.
You should get close to or above 6GB/s at
1:1 250 3-3-3-5 bios overclocking.
Maybe something is running in the background
stealing cpu power or something?
Well, you have to test some more, maybe a
fresh windows setup will help?

MacPro3,1 Quad-Core Intel Xeon, 3 GHz, 16 GB Reboots not stable.

Hi,
I have tried to search the community but I'm not getting any wiser. It all started when i installed Mavericks on my Mac Pro. Now I formatted the SSD and re-installed Mountain Lion 10.8.5 and it has gotten worse. I don't understand what has happend.
Anyone know what to do?
/Jimmy
Here is a log:
Interval Since Last Panic Report: 43 sec
Panics Since Last Report: 3
Anonymous UUID: DDB1424A-2CB9-4992-BB10-673DBF15410D
Tue Nov 5 07:05:15 2013
Machine-check capabilities 0x0000000000000806:
family: 6 model: 23 stepping: 6 microcode: 1547
Intel(R) Xeon(R) CPU X5472 @ 3.00GHz
6 error-reporting banks
threshold-based error status present
Processor 0: machine-check status 0x0000000000000004:
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0xf200000430000800 valid
MCA error code: 0x0800
Model specific error code: 0x3000
Other information: 0x00000004
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xf2000010c4300e0f valid
MCA error code: 0x0e0f
Model specific error code: 0xc430
Other information: 0x00000010
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Processor 1: machine-check status 0x0000000000000004:
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0xf200000430000800 valid
MCA error code: 0x0800
Model specific error code: 0x3000
Other information: 0x00000004
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xf2000010c0300e0f valid
MCA error code: 0x0e0f
Model specific error code: 0xc030
Other information: 0x00000010
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Processor 2: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xf200000084200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8420
Other information: 0x00000000
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Processor 3: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xf200000080200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8020
Other information: 0x00000000
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Processor 4: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200001084200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8420
Other information: 0x00000010
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Processor 5: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200001080200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8020
Other information: 0x00000010
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Processor 6: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200000084200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8420
Other information: 0x00000000
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Processor 7: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200000080200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8020
Other information: 0x00000000
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
panic(cpu 7 caller 0xffffff801aab8389): "Machine Check at 0xffffff7f9c469cf7, registers:\n" "CR0: 0x000000008001003b, CR2: 0x000000010df85000, CR3: 0x000000001ce29000, CR4: 0x0000000000000660\n" "RAX: 0x0000000000000000, RBX: 0xffffff803b3e4000, RCX: 0x0000000000000001, RDX: 0x0000000000000000\n" "RSP: 0xffffff81eab3bcc0, RBP: 0xffffff81eab3bcf0, RSI: 0x0000000000000001, RDI: 0xffffff81e12eb148\n" "R8: 0x00000000e0000000, R9: 0x7ffffffffffffffe, R10: 0x00000000ffffffff, R11: 0x00000000ffffff80\n" "R12: 0x0000000000000001, R13: 0xffffff803b25c640, R14: 0x0000000000000000, R15: 0x0000000000000148\n" "RFL: 0x0000000000000046, RIP: 0xffffff7f9c469cf7, CS: 0x0000000000000008, SS: 0x0000000000000010\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2050.7.9/osfmk/i386/trap_native.c:28 0
Backtrace (CPU 7), Frame : Return Address
0xffffff81e1265ec0 : 0xffffff801aa1d5f6
0xffffff81e1265f30 : 0xffffff801aab8389
0xffffff81e12660a0 : 0xffffff801aaced7f
0xffffff81eab3bcf0 : 0xffffff7f9c46312e
0xffffff81eab3bdd0 : 0xffffff7f9c462515
0xffffff81eab3be80 : 0xffffff801aab8bdb
0xffffff81eab3bea0 : 0xffffff801aa2f193
0xffffff81eab3bee0 : 0xffffff801aa2dc51
0xffffff81eab3bf40 : 0xffffff801aa2d9c3
0xffffff81eab3bf80 : 0xffffff801ae45cad
0xffffff81eab3bfb0 : 0xffffff801aab2677
Kernel Extensions in backtrace:
com.apple.driver.AppleIntelCPUPowerManagement(196.0)[BBF44990-49F7-3780-AF55-C26 B48EDE4C4]@0xffffff7f9c460000->0xffffff7f9c488fff
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12A269
Kernel version:
Darwin Kernel Version 12.0.0: Sun Jun 24 23:00:16 PDT 2012; root:xnu-2050.7.9~1/RELEASE_X86_64
Kernel UUID: 8D5F8EF3-9D12-384B-8070-EF2A49C45D24
Kernel slide: 0x000000001a800000
Kernel text base: 0xffffff801aa00000
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 222319942260
last loaded kext at 125661328070: com.apple.filesystems.smbfs 1.8 (addr 0xffffff7f9c768000, size 229376)
last unloaded kext at 80161770505: com.apple.driver.AppleFileSystemDriver 3.0.1 (addr 0xffffff7f9c689000, size 8192)
loaded kexts:
com.apple.filesystems.smbfs 1.8
com.apple.driver.AudioAUUC 1.60
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.0.9f8
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AppleUpstreamUserClient 3.5.10
com.apple.driver.AppleMCCSControl 1.0.33
com.apple.kext.AMDFramebuffer 8.0.0
com.apple.iokit.CSRBluetoothHCIControllerUSBTransport 4.0.9f8
com.apple.driver.AppleHDA 2.3.0f2
com.apple.ATIRadeonX2000 8.0.0
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleLPC 1.6.0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleMCEDriver 1.1.9
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.ApplePolicyControl 3.2.6
com.apple.iokit.SCSITaskUserClient 3.5.1
com.apple.driver.XsanFilter 404
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 34
com.apple.iokit.IOAHC
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 3 GHz, 16 GB, SMC 1.25f4
Graphics: ATI Radeon HD 2600 XT, ATI Radeon HD 2600, PCIe, 256 MB
Memory Module: DIMM Riser B/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x3138484632353637324A4438304545314434
Memory Module: DIMM Riser A/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x3138484632353637324A4438304545314434
Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports
Network Service: Ethernet 2, Ethernet, en1
PCI Card: ATI Radeon HD 2600, sppci_displaycontroller, Slot-1
Serial ATA Device: OCZ-AGILITY3, 240.06 GB
Serial ATA Device: WDC WD5000AAKS-60Z1A0, 500.11 GB
Serial ATA Device: WDC WD2500JD-41HBC0, 250.06 GB
Serial ATA Device: WDC WD3200JD-22KLB0, 320.07 GB
Parallel ATA Device: OPTIARC DVD RW AD-7170A, 4.75 GB
USB Device: hub_device, 0x0409 (NEC Corporation), 0x005a, 0xfd400000 / 2
USB Device: hub_device, 0x0409 (NEC Corporation), 0x005a, 0xfd440000 / 4
USB Device: iLok, 0x088e, 0x5036, 0xfd442000 / 7
USB Device: XSKey, 0x086a (Emagic Soft-und Hardware Gmbh), 0x0041, 0xfd443000 / 6
USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd441000 / 5
USB Device: Apple Optical USB Mouse, apple_vendor_id, 0x0304, 0xfd441300 / 9
USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0xfd441200 / 8
USB Device: ProtectExecuter, 0x0819, 0x0101, 0xfd430000 / 3
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8206, 0x5d200000 / 2
FireWire Device: built-in_hub, 800mbit_speed

Memory Module: DIMM Riser B/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x3138484632353637324A4438304545314434
Memory Module: DIMM Riser A/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x3138484632353637324A4438304545314434
Why is it that the DIMM 4 only has numbers in it? All the others have all zeros?

Satellite A500- Is there a way to disable Hyper-Threading technology (HTT)?

Is there a way to disable Hyper-Threading technology (HTT)?
It is really bothering me with some apps,..
I cannot seem to find it in bios,..1.5,.. was it in earlier bios?,.. is there a way to roll back,..
Is it even possible,..
Message was edited by: rekof

I know that, but why would toshiba lock it out in the bios 1.5 ,.. even Intel suggest disableing it,.. Its for future proofing,.. for now it does more harm than good,.. for some users atleast,..
Hope we get this option in next bios,.. I would understand if it would be harmful for a product,.. but it is not,..

Error installing WLS 5.1 on Intel Xeon

Hi,
Could you help me?
I try to install BEA WebLogic 5.1 Enterprise Server on Windows 2000 (HP
workstation X4000) with Intel Xeon processor.
After setup I have an error about: WLPASSWDW.exe and when I
startweblogic.cmd I have the error:
D:\weblogic>d:\jdk1.2.2\bin\java -ms64m -mx64m -classpath
.\classes\boot;.\eval\
cloudscape\lib\cloudscape.jar
-Dweblogic.class.path=.\license;.\classes;.\lib\we
blogicaux.jar;.\myserver\serverclasses -Dweblogic.home=.
-Djava.security.manager
-Djava.security.policy==.\weblogic.policy weblogic.Server
Exception in thread "main" java.security.AccessControlException: access
denied (
java.lang.RuntimePermission createSecurityManager )
at
java.security.AccessControlContext.checkPermission(AccessControlConte
xt.java:195)
at
java.security.AccessController.checkPermission(AccessController.java:
403)
at
java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.SecurityManager.<init>(SecurityManager.java:307)
at
weblogic.boot.ServerSecurityManager.<init>(ServerSecurityManager.java
:11)
at weblogic.Server.main(Server.java:59)
at weblogic.Server.main(Server.java:55)
My java env is:
C:\>java -version
java version "1.2.2"
Classic VM (build JDK-1.2.2_007, native threads, symcjit)
Thanks in advance,
Ettore Buzzoni ([email protected])

Yes, I have the weblogic.policy file, but the problem is still reproducible.
Probably the same situation is also with Pentium 4, about symcjit.dll.
Exists a workaround?
Thanks, Ettore.
Robert Patrick wrote:
Does the weblogic.policy file existing in the current directory? If so,
try -Djava.security.policy==./weblogic.policy
Hope this helps,
Robert
Ettore Buzzoni wrote:
Hi,
Could you help me?
I try to install BEA WebLogic 5.1 Enterprise Server on Windows 2000 (HP
workstation X4000) with Intel Xeon processor.
After setup I have an error about: WLPASSWDW.exe and when I
startweblogic.cmd I have the error:
D:\weblogic>d:\jdk1.2.2\bin\java -ms64m -mx64m -classpath
.\classes\boot;.\eval\
cloudscape\lib\cloudscape.jar
-Dweblogic.class.path=.\license;.\classes;.\lib\we
blogicaux.jar;.\myserver\serverclasses -Dweblogic.home=.
-Djava.security.manager
-Djava.security.policy==.\weblogic.policy weblogic.Server
Exception in thread "main" java.security.AccessControlException: access
denied (
java.lang.RuntimePermission createSecurityManager )
at
java.security.AccessControlContext.checkPermission(AccessControlConte
xt.java:195)
at
java.security.AccessController.checkPermission(AccessController.java:
403)
at
java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.SecurityManager.<init>(SecurityManager.java:307)
at
weblogic.boot.ServerSecurityManager.<init>(ServerSecurityManager.java
:11)
at weblogic.Server.main(Server.java:59)
at weblogic.Server.main(Server.java:55)
My java env is:
C:\>java -version
java version "1.2.2"
Classic VM (build JDK-1.2.2_007, native threads, symcjit)
Thanks in advance,
Ettore Buzzoni ([email protected])

Oracle VM & Intel Xeon E5520

Hi,
I have workstation with Intel Xeon E5520. Problem ist that Oracle VM (version 2.2.1) doesn't recognize processor correctly i.e. reports only 4 CPU whereas Xeon E5520 have 4 Cores and total of 8 Threads.
According to this, OS should report total of 8 CPU as it is the case with any RH Linux installation.
Any idea why this is not the case with Oracle VM?
thanks,
goran

I am not sure (but will check) BIOS settings
below is output of xm info
[root@ovs xen]# xm info
host : ovs
release : 2.6.18-128.2.1.4.25.el5xen
version : #1 SMP Tue Mar 23 12:43:27 EDT 2010
machine : i686
nr_cpus : 4
nr_nodes : 1
cores_per_socket : 4
threads_per_core : 1
cpu_mhz : 2261
hw_caps : bfebfbff:28100800:00000000:00000340:009ce3bd:00000000:00000001:00000000
virt_caps : hvm
total_memory : 12285
free_memory : 10545
node_to_cpu : node0:0-3
node_to_memory : node0:10545
xen_major : 3
xen_minor : 4
xen_extra : .0
xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler : credit
xen_pagesize : 4096
platform_params : virt_start=0xff000000
xen_changeset : unavailable
cc_compiler : gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)
cc_compile_by : mockbuild
cc_compile_domain : (none)
cc_compile_date : Wed Mar 24 16:00:43 EDT 2010
xend_config_format : 4

License requirements with hyper-threaded CPUs?

We have purchased a production license for Enterprise edition for a max of 3 CPUs. When we attempt to start Coherence on a production platform (dual hyper-threaded Xeon) we get the following licensing error: "2004-08-21 10:51:40.906 Tangosol Coherence 2.3/273 (thread=Cluster, member=n/a): The number of CPUs used exceeds the maximum number allowed by the license." We are only using two physical CPUs.
We disabled hyper-threading and Coherence started successfully. Is hyper-threading confusing the licensing mechanism by making it appear as though we are using 4 CPUs? If so, is there some method by which we can configure Tangosol to work around this issue or are we forced to purchase an additional CPU license?
Thanks in advance!

Hi Andy,
I have emailed you the necessary production command line argument to resolve this issue.
Later,
Rob Misek
Tangosol, Inc.

Intel Xeon Processor E5-1680 v2 (25M Cache, 3.00 GHz)

Intel® Xeon® Processor E5-1680 v2 (25M Cache, 3.00 GHz)
the maximum turbo frequency performance of this chip (as use in the new Mac Pro 8 core version i think) is 3.9GHz. How is this achieved through operating the system? i.e is it done through Mavericks?
thanks

Thanks for the link.. Made an interesting read. However I am purchasing a MacPro for only 1 main reason:FCPX. FCPX seems to be one of the very few apps that can take advantage of the multiple primary processing cores as well the new GPU configuration. Having an 8 core (despite the 'only slightly' slower clock speeds), must surely be more advantageous than having 2 less processing core's processing multiple threads.
With the current lack of support for the nMP hardware, (and that's hardly surprising considering it's only just coming out), things can only get better for the nMP. Adobe (so I've heard) are already earmarking multiple GPU support etc.
What interest me from the article is that all the E5 processors have the same thermal design point rating - does this mean they all use the same amount of power under the same processing load? Or have I misunderstood this?
Thanks.

Can't get Hyper-Threading to work on MS-6788

Hi,
I have just purchased a MS-6788 motherboard which I am using in conjuction with a P4 2.8Ghz. I installed Windows XP on to the computer and noticed that the OS can't see hyper-threading. I checked the BIOS and in the section 'Advanced BIOS Features' there isnt the option for 'Hyper Threading Function'. Do you know why this is?
Cheers,
Dan

Sorry to be the bringer of bad tidings but ... The only Socket 478 P4 533mhz that does Hyperthreading is the 3.06. All the other Socket 478 P4 HT processors are the 800mhz flavour.
For confirmation by Intel themselves, see http://processorfinder.intel.com/details.aspx?sSpec=SL6PF and note that under "Supported Features" there is nothing. Also check the 800mhz version of the 2.8 at e.g., http://processorfinder.intel.com/details.aspx?sSpec=SL79K and you will see Hyper-Threading Technology under "Supported Features".
HTH, Ray

Intel Xeon Hyper Threading

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