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Five runs of the same one-million-allocation loop on Node 22, changing only how many objects stay reachable, move total GC time from 13 ms to 334 ms — and that single fact explains most of what people get wrong about V8's heap, Go's missing generations, and why Twitch's 10 GiB of useless memory made their API faster.
AdminAugust 10, 202612 min read