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GOMEMLIMIT and the Go Runtime's Memory Limit: Trading GC CPU for RAM

Oct 21, 2026 15 min read Jay Hubbert

GOMEMLIMIT is a soft ceiling on the runtime’s total memory; the runtime turns it into a heap goal that overrides the GOGC-derived goal, and scavenges more aggressively as it …

GoInternalsMemoryContainersGarbage collector

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