时的Dalvik的内存模型一样 Java的？我在是否读取和参考写入和特别感兴趣的非 - 长 /非 - 双原始变量是原子，但我也想知道有没有这两个平台的内存模型之间的差异。

Is Dalvik's memory model the same as Java's? I am particularly interested in whether reads and writes of reference and non-long/non-double primitive variables are atomic, but I would also like to know whether there are any differences between the two platforms' memory models.

推荐答案

由于4.0（冰淇淋三明治），Dalvik的行为应该匹配与JSR-133（Java内存模型）。

As of 4.0 (Ice Cream Sandwich), Dalvik's behavior should match up with JSR-133 (the Java Memory Model).

由于3.0（蜂巢），大部分作品已经到位，但一些细微的东西都被忽视了，这将是很难在实践中遇到的（在最终确定如一些边缘的情况下）。

As of 3.0 (Honeycomb), most of the pieces were in place, but some minor things had been overlooked that would be difficult to encounter in practice (e.g. some edge cases in finalization).

由于2.3（姜饼），Dalvik的是一般在单处理器上正确的，但需要在SMP硬件上正确的行为（例如适当的最后字段处理）的一些关键功能缺失

As of 2.3 (Gingerbread), Dalvik was generally correct on uniprocessors, but some key features required for proper behavior on SMP hardware (e.g. proper final field handling) was missing.

pre-姜饼，有完全没有记忆障碍，基本的东西，如挥发性长被打破了。

Pre-Gingerbread, there were no memory barriers at all, and basic stuff like volatile long was broken.