Java和高速缓存:预取和对齐? [英] Java and cache memory: prefetching and alignment?

问题描述

在Java中，是否具有与GNU C扩展 prefetch 和 align(64)(即缓存行对齐)等功能等效的功能?

In Java, are there equivalences to functions such as GNU C extensions prefetch and align(64), that is, cache line alignment?

推荐答案

我不知道，因为它在按需编译系统中没有意义.使用Java，运行时优化器的工作是找出这些东西，并且最佳结果将取决于当前平台，这可能会或可能不会受益于 prefetch 和 align的构造.报价.

Not that I know of because it doesn't make sense in a compile-on-demand system. With Java, it's the run-time optimizer's job to figure this stuff out and the best result is going to depend on the current platform which may or may not benefit from the constructs that prefetch and align offer.

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