038b158fa3 (master): [ruby/mmtk] Implement fast path for bump pointer allocator
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Peter Zhu
Dec 20, 2025, 9:55:46 PM (4 days ago) Dec 20
to ruby...@g.ruby-lang.org
Peter Zhu 2025-12-20 21:08:01 +0000 (Sat, 20 Dec 2025)
New Revision: 038b158fa3
https://github.com/ruby/ruby/commit/038b158fa3
Log:
[ruby/mmtk] Implement fast path for bump pointer allocator
Adding a fast path for bump pointer allocator can improve allocation
performance.
For the following microbenchmark with MMTK_HEAP_MIN=100MiB:
10_000_000.times { String.new }
Before:
810.7 ms ± 8.3 ms [User: 790.9 ms, System: 40.3 ms]
After:
777.9 ms ± 10.4 ms [User: 759.0 ms, System: 37.9 ms]
https://github.com/ruby/mmtk/commit/0ff5c9f579
Modified files:
gc/mmtk/cbindgen.toml
gc/mmtk/mmtk.c
gc/mmtk/mmtk.h
gc/mmtk/src/api.rs
New Revision: 038b158fa3
https://github.com/ruby/ruby/commit/038b158fa3
Log:
[ruby/mmtk] Implement fast path for bump pointer allocator
Adding a fast path for bump pointer allocator can improve allocation
performance.
For the following microbenchmark with MMTK_HEAP_MIN=100MiB:
10_000_000.times { String.new }
Before:
810.7 ms ± 8.3 ms [User: 790.9 ms, System: 40.3 ms]
After:
777.9 ms ± 10.4 ms [User: 759.0 ms, System: 37.9 ms]
https://github.com/ruby/mmtk/commit/0ff5c9f579
Modified files:
gc/mmtk/cbindgen.toml
gc/mmtk/mmtk.c
gc/mmtk/mmtk.h
gc/mmtk/src/api.rs
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