YJIT Benchmarks

Details for Benchmarks at 2022-10-26 20:10:35

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.7% faster than CRuby!
The basic "faster" measurement is the geomean of all "headlining" x86 benchmarks on this page.

Headlining Benchmarks

These are "headlining" because the "overall" speedup above is based on these benchmarks specifically.

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

Other Benchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

MicroBenchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

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Benchmarks Speed Details

Benchmark Memory Usage Details

Number of Iterations and Warmups Tested

bench No JIT warmups No JIT iters YJIT warmups YJIT iters
activerecord 5 201 5 201
hexapdf 5 15 5 15
liquid-render 5 178 5 178
mail 5 129 5 129
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 243 5 243
binarytrees 5 89 5 89
chunky_png 5 32 5 32
erubi 5 68 5 68
erubi_rails 5 1051 5 1051
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 244 5 244
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 21 5 21
cfunc_itself 5 499 5 499
fib 5 324 5 324
getivar 5 426 5 426
keyword_args 5 386 5 386
respond_to 5 714 5 714
setivar 5 419 5 419
str_concat 5 463 5 463

Different Ruby configurations want different amounts of warmup. With no JIT, CRuby needs hardly any. YJIT and MJIT 3.0 both warm up quite quickly, while MJIT in 3.1 often slows down for a time as it compiles, after an unpredictable delay.

Benchmark YJIT Stats

Hover your cursor over the benchmark names for descriptions of each benchmark.

bench Exit Report Inline Outlined Comp iSeqs Comp Blocks Inval Inval Ratio Bind Alloc Bind Set Const Bumps
activerecord (click) 2314541 2312535 23 343 6 1% 0 0 0
hexapdf (click) 1761239 1760729 817 10045 189 1% 0 0 0
liquid-render (click) 557724 557286 154 1763 34 1% 0 0 0
mail (click) 1321950 1320485 371 5032 176 3% 0 0 0
psych-load (click) 806987 805633 68 574 19 3% 0 0 0
railsbench (click) 5530111 5528781 1777 13668 483 3% 0 0 0
ruby-lsp (click) 5596991 5594823 6423 41570 1521 3% 12754 0 0
binarytrees (click) 128502 126491 14 79 4 5% 0 0 0
chunky_png (click) 821691 820647 87 1061 31 2% 0 0 0
erubi (click) 749856 748426 11 87 4 4% 0 0 0
erubi_rails (click) 4631519 4629438 327 2624 111 4% 0 0 0
etanni (click) 129371 126501 11 47 4 8% 0 0 0
fannkuchredux (click) 141142 140453 11 209 4 1% 0 0 0
lee (click) 831977 830376 77 758 25 3% 0 0 0
nbody (click) 143190 141790 13 188 6 3% 0 0 0
optcarrot (click) 556910 556809 201 4014 93 2% 0 0 0
rubykon (click) 279205 278769 143 1587 32 2% 0 0 0
30k_ifelse (click) 5420144 5419577 9266 57136 4 0% 0 0 0
30k_methods (click) 2088352 2087875 5785 19365 4 0% 0 0 0
cfunc_itself (click) 126405 125081 11 62 4 6% 0 0 0
fib (click) 124949 124149 11 51 4 7% 0 0 0
getivar (click) 127027 125607 11 78 4 5% 0 0 0
keyword_args (click) 127195 125485 12 64 4 6% 0 0 0
respond_to (click) 126928 125448 11 78 5 6% 0 0 0
setivar (click) 127195 125420 11 51 4 7% 0 0 0
str_concat (click) 126645 125338 13 77 6 7% 0 0 0

YJIT stats correspond to the YJIT stats exit report.

Note: currently, all stats are collected on x86_64, not ARM.

Raw JSON data files

All graphs and table data in this page comes from processing these data files, which come from benchmark runs.