(^^)--	S.	 1
^npoufxc2^~~^	^	 >	 2  3  4  5 
 3  4  5  6			
		loadbalancer() ,>	
		|/         	
 20		 15

 
 1,
20 

 
 2, 
15 

. 4.4.   

 load_balance ()        
,  ,   ,  .

  load_balance ()   find_busiest_queue() 
    .   
      .    -
,      25% ,    ,
  find_busiest_queue ()   NULL  
   load_balance ().     
   .

  load_balance ()    ,    -
      . 
   ,      
     ,  ,    
 (..    , not "cache hot").   
 ,    ,    .

  load balance ()    , 
   (   ),    -
      ,   .

         -
,   ,     - 
     .   ,  
 ,    pull_task ()  
        .

     ,  
        -
       .  
,   ,     -
    load_balance ().

   85