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面试官：线程池里面到底该设置多少个线程？-wx5d30212829a35的博客
source link: https://blog.51cto.com/14455981/2498674
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一、抛出问题关于如何计算并发线程数，一般分两派，来自两本书，且都是好书，到底哪个是对的？问题追踪后，整理如下：第一派：《Java Concurrency in Practice》即《java并发编程实践》，如下图：如上图，在《Java Concurrency in Practice》一书中，给出了估算线程池大小的公式：Nthreads=Ncpu*Ucpu*(1+w/c)，其中Ncpu=CPU核心数
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