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| author | Aaron Patterson <tenderlove@ruby-lang.org> | 2024-07-02 18:29:23 -0700 |
|---|---|---|
| committer | Aaron Patterson <aaron.patterson@gmail.com> | 2024-07-03 10:01:41 -0700 |
| commit | f4b313f7338f5fbe37f73aae29f70aeb474f7f5b (patch) | |
| tree | 93b8697803d2ecd9553119bd44b0dab43cb09015 /lib | |
| parent | cbc40aca3ae5f139235724d4c6f9b63d0dd4e962 (diff) | |
move Integer#downto to Ruby
Speeds up ChunkyPNG.
The interpreter is about 70% faster:
```
before: ruby 3.4.0dev (2024-07-03T15:16:17Z master 786cf9db48) [arm64-darwin23]
after: ruby 3.4.0dev (2024-07-03T15:32:25Z ruby-downto 0b8b744ce2) [arm64-darwin23]
---------- ----------- ---------- ---------- ---------- ------------- ------------
bench before (ms) stddev (%) after (ms) stddev (%) after 1st itr before/after
chunky-png 892.2 0.1 526.3 1.0 1.65 1.70
---------- ----------- ---------- ---------- ---------- ------------- ------------
Legend:
- after 1st itr: ratio of before/after time for the first benchmarking iteration.
- before/after: ratio of before/after time. Higher is better for after. Above 1 represents a speedup.
```
YJIT is 2.5x faster:
```
before: ruby 3.4.0dev (2024-07-03T15:16:17Z master 786cf9db48) +YJIT [arm64-darwin23]
after: ruby 3.4.0dev (2024-07-03T15:32:25Z ruby-downto 0b8b744ce2) +YJIT [arm64-darwin23]
---------- ----------- ---------- ---------- ---------- ------------- ------------
bench before (ms) stddev (%) after (ms) stddev (%) after 1st itr before/after
chunky-png 709.4 0.1 278.8 0.3 2.35 2.54
---------- ----------- ---------- ---------- ---------- ------------- ------------
Legend:
- after 1st itr: ratio of before/after time for the first benchmarking iteration.
- before/after: ratio of before/after time. Higher is better for after. Above 1 represents a speedup.
```
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions