What Every Programmer Should Know About Memory

偏执的太偏执、 2023-06-19 13:28 2阅读 0赞

非常经典且全面介绍内存的资料，强烈推荐。

内容包括：

*  Commodity Hardware Today
 *  CPU Caches
 *  Virtual Memory
 *  NUMA Support
 *  What Programmers Can Do
 *  Memory Performance Tools
 *  Upcoming Technology

**查看PDF：[What Every Programmer Should Know About Memory][]**

### Abstract ###

As CPU cores become both faster and more numerous, the limiting factor for most programs is now, and will be for some time, memory access. Hardware designers have come up with ever more sophisticated memory handling and acceleration techniques–such as CPU caches–but these cannot work optimally without some help from the programmer. Unfortunately, neither the structure nor the cost of using the memory subsystem of a computer or the caches on CPUs is well understood by most programmers. This paper explains the structure of memory subsystems in use on modern commodity hardware, illustrating why CPU caches were developed, how they work, and what programs should do to achieve optimal performance by utilizing them.

[What Every Programmer Should Know About Memory]: http://www.ilinuxkernel.com/files/What.Every.Programmer.Should.Know.About.Memory.November.2007.pdf

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