超线程没有打开?

pointer

才发现, 不知道要怎么做?
dmesg | grep  -i cpu
显示

1. 
   
2. [4294667.296000] Initializing CPU#0
   
3. [4294667.629000] CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 0000441d 00000000 00000000
   
4. [4294667.629000] CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 0000441d 00000000 00000000
   
5. [4294667.629000] CPU: Trace cache: 12K uops, L1 D cache: 16K
   
6. [4294667.629000] CPU: L2 cache: 1024K
   
7. [4294667.629000] CPU: Hyper-Threading is disabled
   
8. [4294667.629000] CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080 0000441d 00000000 00000000
   
9. [4294668.128000] CPU0: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 01
   
10. [4294668.138000] Initializing CPU#1
    
11. [4294668.199000] CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 0000441d 00000000 00000000
    
12. [4294668.199000] CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 0000441d 00000000 00000000
    
13. [4294668.199000] CPU: Trace cache: 12K uops, L1 D cache: 16K
    
14. [4294668.199000] CPU: L2 cache: 1024K
    
15. [4294668.199000] CPU: Hyper-Threading is disabled
    
16. [4294668.199000] CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080 0000441d 00000000 00000000
    
17. [4294668.199000] CPU1: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 01
    
18. [4294668.310000] checking TSC synchronization across 2 CPUs: passed.
    
19. [4294668.311000] Brought up 2 CPUs
    

复制代码

谢谢.

matthewlam64

要裝linux smp kernel才有hyperthreading的

Post by pointer
才发现, 不知道要怎么做?
dmesg | grep  -i cpu
显示

1. 
   
2. [4294667.296000] Initializing CPU#0
   
3. [4294667.629000] CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 0000441d 00000000 00000000
   
4. [4294667.629000] CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 0000441d 00000000 00000000
   
5. [4294667.629000] CPU: Trace cache: 12K uops, L1 D cache: 16K
   
6. [4294667.629000] CPU: L2 cache: 1024K
   
7. [4294667.629000] CPU: Hyper-Threading is disabled
   
8. [4294667.629000] CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080 0000441d 00000000 00000000
   
9. [4294668.128000] CPU0: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 01
   
10. [4294668.138000] Initializing CPU#1
    
11. [4294668.199000] CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 0000441d 00000000 00000000
    
12. [4294668.199000] CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 0000441d 00000000 00000000
    
13. [4294668.199000] CPU: Trace cache: 12K uops, L1 D cache: 16K
    
14. [4294668.199000] CPU: L2 cache: 1024K
    
15. [4294668.199000] CPU: Hyper-Threading is disabled
    
16. [4294668.199000] CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080 0000441d 00000000 00000000
    
17. [4294668.199000] CPU1: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 01
    
18. [4294668.310000] checking TSC synchronization across 2 CPUs: passed.
    
19. [4294668.311000] Brought up 2 CPUs
    

复制代码

谢谢.