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This category consists of posts which form “1st beta” of the Vol. IV-VI (Development) of the upcoming 3-volume monster “Development & Deployment of Multiplayer Online Games”. Please note that order of the posts is “as they were published on this site”, and is not exactly the same as the order of the Chapters within Vol. 2. For Chapters in correct order – please refer to ToC of Vol. 2.

D&D of MOGs: Vol. IV-VI (1st beta), page 6:

C++ Guidelines – Made-to-Measure vs One-Size-Fits-All

posted by

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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C++ Performance: Common Wisdoms and Common “Wisdoms”

posted by

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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C++ for Games: Performance. Allocations and Data Locality

posted by

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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Marshalling and Encodings

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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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Network Programming: Socket Peculiarities, Threads, and Testing

posted by

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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UDP for games – security (encryption and DDoS protection)

posted by

Quote: “Yes, you DO need to encrypt your UDP traffic. And no, using UDP is NOT a valid excuse to skip encryption”
Another Quote: “Personally, I prefer to think of it as of insurance – when I’m paying my premiums in hope that my money will go to waste.”
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