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in both these cases we can be 100% sure that we’ll be deserializing this state on the executable which is identical to the executable which serialized the state.

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Even when comparing with home-grown code with per-field serialization, our Ultra-Fast Serialization still wins (up to 1.5x-2x)

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I’ve seen game companies with hundreds of thousands of dollars lost per hour of unplanned server downtime.

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deterministic debugging is by far the best thing I have seen for production debugging.

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we realize that for some of the Clients – UDP just doesn’t work because of some weird firewall between Client and Server

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there is nothing to block us (so head-of-line blocking doesn’t apply)

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Nagle’s algorithm aims to deal with those [CENSORED] developers who’re trying to send data over TCP in really small chunks (like 1 byte each time)

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it seems that “proportional rate reduction” (PRR, reportedly used by Linux kernels by default starting from 3.2) performs for gaming purposes a little bit better than the alternatives