Scavenging the Young Generation: How V8 Copies Live Objects in Milliseconds
V8’s scavenger copies live young objects between two semi-spaces with Cheney’s algorithm and promotes survivors by age.
Gc
The Write Barrier: How V8 Knows Where a Moved Object Used to Live
V8’s write barrier has four tiers and three jobs: remembering old-to-new references, preserving the tri-colour invariant during marking, and recording slots so a compacting GC can …