Yukihiro "Matz" Matsumoto 31fea1709f gc.c: replace gcnext gray linked list with fixed-size gray stack ...

remove per-object gcnext pointer from MRB_OBJECT_HEADER, saving one
word (8 bytes on 64-bit) per object slot. the gray list for tri-color
marking is replaced by a fixed-size stack (MRB_GRAY_STACK_SIZE=1024)
in mrb_gc. when the stack overflows, a linear heap rescan recovers
gray objects.

object slot size: 48 -> 40 bytes (16.7% reduction on 64-bit).
benchmarks show up to 12% RSS reduction on object-heavy workloads
with neutral performance impact.

Co-authored-by: Claude <noreply@anthropic.com>

2026-02-12 13:38:21 +09:00

..

mruby

gc.c: replace gcnext gray linked list with fixed-size gray stack

2026-02-12 13:38:21 +09:00

mrbconf.h

symbol.c: implement adaptive symbol table for memory efficiency

2025-08-14 10:53:08 +09:00

mruby.h

symbol.c: use chunk-based pool for symbol string allocation

2026-02-10 11:12:25 +09:00