Transcription of What Every Programmer Should Know About Memory
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What Every Programmer Should Know About Memory
What Every Programmer Should Know About MemoryUlrich DrepperRed Hat, 21, 2007 AbstractAs CPU cores become both faster and more numerous, the limiting factor for most programs isnow, and will be for some time, Memory access. Hardware designers have come up with evermore sophisticated Memory handling and acceleration techniques such as CPU caches butthese cannot work optimally without some help from the Programmer . Unfortunately, neitherthe structure nor the cost of using the Memory subsystem of a computer or the caches on CPUsis well understood by most programmers.
mer do a better job. Even with a complete understanding of the technology it is far from obvious where in a non-trivial software project the problems are. Some tools are necessary. In section 8 we finally give an outlook of technology which can be expected in the near future or which might just simply be good to have. Reporting Problems
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