将作用域设置为私有的页面存储在浏览器缓存中能达到对缓存的最佳内存利用，同时其位置也尽可能地接近最终用户。
Storing privately scoped pages in a browser cache is optimal with regard to memory utilization in the cache, as well as in its location as close as possible to the end user.
在缓存缺乏一致性的情况下，两个不同的处理器可以看到在内存中同一位置处有两种不同的值。
In the absence of cache coherency, two different processors may see two different values for the same location in memory.
对象最终存储在内存中，但编译器、运行库、处理器或缓存可以有特权定时地在变量的指定内存位置存入或取出变量值。
Objects are ultimately stored in memory, but the compiler, runtime, processor, or cache may take some liberties with the timing of moving values to or from a variable's assigned memory location.
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