macmind Posted October 5, 2006 Share Posted October 5, 2006 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 Link to comment Share on other sites More sharing options...
errandwolfe Posted October 5, 2006 Share Posted October 5, 2006 Running 10.4.8 here. Started with the userland 10.4.3 release and have just upgraded along the way. Always had HT. Link to comment Share on other sites More sharing options...
The Shaun Posted October 5, 2006 Share Posted October 5, 2006 Wow. I didn't know OS X supported HyperThreading. I don't have it either.. How do you get it back? Link to comment Share on other sites More sharing options...
errandwolfe Posted October 5, 2006 Share Posted October 5, 2006 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. Link to comment Share on other sites More sharing options...
The Shaun Posted October 5, 2006 Share Posted October 5, 2006 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. Link to comment Share on other sites More sharing options...
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