Abstract diagram showing white, grey, and black object nodes connected by pointers representing tri-color marking.

Implementing Concurrent Garbage Collection: A Deep Dive into Tri-Color Marking for Low-Latency Runtimes

A working-engineer’s tour of tri-color invariant, write barriers, and the SATB vs. incremental-update trade-offs that make modern concurrent GCs possible.

September 3, 2026 · 12 min · 2431 words · martinuke0
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