enable HT 10.4.6+?.

[macmind]

How can I enable HT( Hyper-Threading) on JaS 10.4.6 installation?.

 

Then I install 10.4.1(Intel) on my 3 Ghz P4 HT 630, AsRock 775dual915GL, 1 Gb DDR400 dual ram, .

I had HT enable.

 

But then I Install JaS 10.4.6 I don't have HT.

 

10.4.1

 

Hardware Overview:

 

Machine Name: Apple Development Platform

Machine Model: ADP2,1

CPU Type: Intel® Pentium® 4 CPU

Number Of CPUs: 1

CPU Speed: 2.99 GHz

L2 Cache (per CPU): 2 MB

Hyper-Threading Technology: Enabled

CPU Features: FPU VME DE PSE TSC MSR PAE MCE CX8 APIC SEP MTRR PGE MCA CMOV PAT PSE36 CLFSH DS ACPI MMX FXSR SSE SSE2 SS HTT TM SSE3 MON DSCPL EST CX16 TPR

Memory: 1016 MB

Bus Speed: 800 MHz

Boot ROM Version: P1.10 (American Megatrends Inc.)

 

10.4.6 JaS DVD

 

Hardware Overview:

 

Machine Name: jMac

Machine Model: ADP2,1

CPU Type: Intel® Pentium® 4 CPU

Number Of CPUs: 1

CPU Speed: 3 GHz

L2 Cache (per CPU): 2 MB

CPU Features: FPU VME DE PSE TSC MSR PAE MCE CX8 APIC SEP MTRR PGE MCA CMOV PAT PSE36 CLFSH DS ACPI MMX FXSR SSE SSE2 SS HTT TM SSE3 MON DSCPL EST CX16 TPR

Memory: 1016 MB

Bus Speed: 800 MHz

Boot ROM Version: P1.10 (American Megatrends Inc.)

Serial Number: 00000000000

[errandwolfe]

Running 10.4.8 here. Started with the userland 10.4.3 release and have just upgraded along the way. Always had HT.

[The Shaun]

Wow. I didn't know OS X supported HyperThreading. I don't have it either.. How do you get it back?

[errandwolfe]

As I said, I never did anything special to enable it, it has always just worked. If you look under activity monitor my system definitly thinks it has 2 CPU's. Keep in mind there is a difference though between P4's with Hyperthreading and the P4D lines. I won't get into the technical specifics (because I dont know them), but my understanding is the performance is better on a D series versus standard HT.

[The Shaun]

I think they just took the Hyperthreading variable out of System Profiler. If I run the CHUD Processor PrefPane, it shows that HT is there and is enabled.