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Shared memory provides the fastest method of interprocess communication, because it processes read and write messages at the speed of memory transfers.

共享内存提供了最快的进程间通信方法，因为它以内存传输的速度来处理读写消息。

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Of course, the exploit that they've actually released is completely harmless, but it demonstrates that the CPU cache can be "poisoned" to let folks read and write into the otherwise protected SMRAM memory.

ENGADGET: New SMM exploit targets Intel CPU caching vulnerability

SSDs using NAND flash memory are capable of very fast read and write speeds and thus can make immediate use of such fast interfaces (whereas it takes many SAS HDDs working together to result in data rates even approaching there speeds).

FORBES: Speedy Ways to Move Enterprise Data