CHAPTER 7
The End of Disk? SSD and In-Memory Databases
640K of memory should be enough for anybody.
—attributed (without foundation) to Bill Gates, 1981
I’ve said some stupid things and some wrong things, but not that.
—Bill Gates, 2001
Ever since the birth of the first database systems, database professionals have strived to avoid disk IO at all costs. IO to magnetic disk devices has always been many orders of magnitude slower than memory or CPU access, and the situation has only grown worse as Moore’s law accelerated the performance of CPU and memory while leaving mechanical disk performance behind.
The emergence of affordable solid state ...
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