比较缓存线程池性能的对比测试显示，新的非阻塞同步队列实现提供了几乎是当前实现3倍的速度。

Benchmark tests comparing cached thread pool performance show that the new nonblocking synchronous queue implementation offers close to three times the speed over the current implementation.

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第四行以超出锁的次数、用户线程或者缓存数来开始(通常所有的0会是这样)。

The fourth line starts with the number of times we have exceeded locks, user threads or buffers (all 0 and should generally be so).

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清单5显示如何确定是否缓存了足够的线程。

Listing 5 shows how to determine if you have enough threads cached.

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