“No Bugs” Bunny
Implementing Queues for Event-Driven Programs
June 13, 2016 by • “No Bugs” Bunny
Quote:
full queues SHOULD NOT happen during normal operation
Another Quote:
With queues-implemented-over-mutexes like the ones we’ve written above, the most annoying thing performance-wise is that there is a chance that the OS’s scheduler can force the preemptive context switch right when the thread-being-preempted-is-owning-our-mutex.
Filed under: Book: D&D of MOGs1st beta of Vol. IV-VIOn.System Architecture(Re)ActorsOn.ProgrammingTips and Tricks
Read moreC++ Guidelines - Made-to-Measure vs One-Size-Fits-All
June 6, 2016 by • “No Bugs” Bunny
Abstract:
After bashing all those Big Name guys for making those over-arching sets of guidelines, it is perfectly logical for me myself to do the same?
Quote:
DON’T use C-style cast, EVER. If you DO need a cast – DO spend time on figuring out which of C++ *_cast<>s you really mean (and maybe, you’ll find a way to avoid that cast at all)
Filed under: Book: D&D of MOGs1st beta of Vol. IV-VIOn.ProgrammingProgramming LanguagesOn.DevelopmentDevelopment Processes
Tagged With: C/C++
Read moreC++ Performance: Common Wisdoms and Common “Wisdoms”
May 30, 2016 by • “No Bugs” Bunny
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.
Filed under: Book: D&D of MOGs1st beta of Vol. IV-VIOn.ProgrammingTips and TricksProgramming LanguagesOptimizations
Read moreC++ for Games: Performance. Allocations and Data Locality
May 23, 2016 by • “No Bugs” Bunny
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.
Filed under: Book: D&D of MOGs1st beta of Vol. IV-VIOn.ProgrammingTips and TricksProgramming LanguagesOptimizations
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