If you're in trouble and cannot find an answer to a question which goes beyond Stack Overflow...

If you have a not-so-usual solution for your problems but need to justify it to your boss...

If you like to think on your own rather than blindly follow "common wisdom" and "profound truth"...

...then 'No Bugs' Hare on Soft.ware might be the right place for you.

Your mileage may vary. Batteries not included

Development & Deployment of Multiplayer Online Games, page 11:

Random Number Generation

posted June 21, 2016 by "No Bugs" Hare

Quote:	“even if your RNG is statistically perfect, people will still complain 🙁 “
Another Quote:	“On modern x86 CPUs, single core can generate 150M+ random bytes/second this way (and this is a Damn Lot).”
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Pages: 1 2

posted June 13, 2016 by "No Bugs" Hare

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.”
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posted June 6, 2016 by "No Bugs" Hare

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)”
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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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posted May 16, 2016 by "No Bugs" Hare

Quote:	“Encoded data size is especially important for Client-Server communications, and less important (within reason) for Server-to-Server ones and for locally-stored format.”
Another Quote:	“On the other hand, due to being optimized for CPU operation, Flatbuffers are NOT optimized space-wise; even compared to not-so-optimal-space-wise Google Protocol Buffers, Flatbuffers can lose additional 1.5x in size”
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posted May 9, 2016 by "No Bugs" Hare

Quote:	“I am not saying that this architecture is the only viable one, but it does work for TCP for sure (and performs reasonably well too)”
Another Quote:	“The whole task of optimizing performance beyond, say, 20-50K packets/second per box tends to be Quite Elaborated, and involves quite a few things which are platform- and hardware-dependent.”
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