In our company where the system we build is very large and complex, synchronization is hard.
在我们的公司里，我们构建的系统不但大，而且复杂，同步很困难。
In tuning an application's use of synchronization, then, we should try hard to reduce the amount of actual contention, rather than simply try to avoid using synchronization at all.
所以，在调试应用程序中同步的使用时，我们应该努力减少实际争用的数目，而根本不是简单地试图避免使用同步。
It can be desirable to have a small and deterministic cost for locking that is known to be uncontested but where synchronization directives are hard to avoid or remove.
如果已知锁定是无争用的但是难以避免或删除同步指令，则对这些锁定花费一点小的确定的开销不失为明智的做法。
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