java - Handling tasks with different priorities in a thread pool -

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i have many incoming tasks of priority a, b , c , want handle tasks thread pool on multicore cpu. 70% of cpu should used process 'type a' tasks, 20% of cpu 'type b' tasks , 10% of cpu 'type c' tasks.

if however, tasks of 'type c' arrive, 100% of cpu should devoted them. if task b , c arirve 66% proccess task b , 33% task c, etc...

how implement in java?

p.s: priority queue won't work because type tasks processed. also, assigning priorities threads wont work because not accurate.

maybe should use 3 pools of threads then. 1 pool of 7 threads tasks, 1 pool of 2 threads b tasks, , 1 pool of 1 thread c tasks.

edit: have parallelism if there c tasks (or, if have many processors, if have b , c tasks), multiply number of threads in each pool number of processors, or number of processors + 1, or other bigger factor like.


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