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Assorted Rants Tagged ‘Locality’, page 1:

Infographics: Operation Costs in CPU Clock Cycles

posted September 12, 2016 by "No Bugs" Hare

Quote:	“Back in 80s, it was possible to calculate the speed of the program just by looking at assembly.”
Another Quote:	“keep in mind that these days compilers tend to ignore inline specifications more often than not”
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posted May 30, 2016 by "No Bugs" Hare

Quote:	“over(ab)using C++ features is a different story, we’ll discuss these features below on case-by-case basis”
Another Quote:	“Compiler will use all its Next-to-Divine Wisdom to show you that it is smarter than you are, and to ignore most of those inline specifications you carefully wrote.”
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posted May 23, 2016 by "No Bugs" Hare

Abstract:	“Allocations and related lack of spatial locality can be DAMN EXPENSIVE”
Quote:	“During the times of Ancient Gamers (also known as times of Atari, ZX Spectrum, and Commodore64), CPUs were running at clock speed of a single-MHz (and one operation usually took several clocks). At the same time, memory run at about the speed comparable to that of CPUs.”
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