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NEVER EVER use IPv4 for long-term bans

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If using MAC addresses to identify devices, you SHOULD gather stats on repeating MAC addresses within your DB

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even if your RNG is statistically perfect, people will still complain🙁

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On modern x86 CPUs, single core can generate 150M+ random bytes/second this way (and this is a Damn Lot).

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full queues SHOULD NOT happen during normal operation

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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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over(ab)using C++ features is a different story, we’ll discuss these features below on case-by-case basis

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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.