Using 6 URL to test KeepOne ,then use 10 URL to test with cache.
1) First Run
In proxy:    
  17.0  18.0  21.0  21.0  59.0  61.0 
In proxy:  17  61  4
In proxy:  Expect  :32.833333333333336  445.7666666666667  
For Runtime ********************
In proxy:    
  140.0  142.0  145.0  150.0  189.0  193.0 
In proxy:  140  193  5
In proxy:  Expect  :159.83333333333334  595.7666666666667  

In proxy:    
  4.0  6.0  6.0  6.0  16.0  17.0  19.0  26.0  47.0  51.0 
In proxy:  4  51  4
In proxy:  Expect  :19.8  288.4  
For Runtime ********************
In proxy:    
  69.0  70.0  71.0  74.0  118.0  119.0  142.0  146.0  147.0  153.0 
In proxy:  69  153  8
In proxy:  Expect  :110.9  1308.1  

2) Second Run
In proxy:    
  18.0  18.0  19.0  57.0  57.0  59.0 
In proxy:  18  59  4
In proxy:  Expect  :38.0  464.8  
For Runtime ********************
In proxy:    
  148.0  150.0  158.0  180.0  184.0  191.0 
In proxy:  148  191  4
In proxy:  Expect  :168.5  350.3  

In proxy:    
  4.0  5.0  5.0  5.0  16.0  17.0  17.0  28.0  46.0  55.0 
In proxy:  4  55  5
In proxy:  Expect  :19.8  325.5111111111112  
For Runtime ********************
In proxy:    
  67.0  68.0  72.0  75.0  121.0  125.0  138.0  141.0  142.0  154.0 
In proxy:  67  154  8
In proxy:  Expect  :110.3  1259.1222222222223  

3) Third Run
In proxy:    
  16.0  21.0  23.0  43.0  56.0  59.0 
In proxy:  16  59  4
In proxy:  Expect  :36.333333333333336  354.2666666666667  
For Runtime ********************
In proxy:    
  144.0  146.0  150.0  167.0  185.0  187.0 
In proxy:  144  187  4
In proxy:  Expect  :163.16666666666666  378.9666666666667  

In proxy:    
  5.0  5.0  5.0  5.0  5.0  5.0  15.0  16.0  17.0  30.0 
In proxy:  5  30  2
In proxy:  Expect  :10.8  72.62222222222222  
For Runtime ********************
In proxy:    
  68.0  71.0  73.0  73.0  74.0  75.0  146.0  146.0  154.0  164.0 
In proxy:  68  164  9
In proxy:  Expect  :104.4  1741.6000000000001  
