YJIT Benchmarks

Details for Benchmarks at 2023-01-11 20:10:12

Overall YJIT is 37.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 41.1% 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 5 175 5 175
hexapdf 5 15 5 15
liquid-render 5 178 5 178
mail 5 141 5 141
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 258 5 258
sequel 5 135 5 135
binarytrees 5 85 5 85
chunky_png 5 32 5 32
erubi 5 68 5 68
erubi_rails 5 1151 5 1151
etanni 5 42 5 42
fannkuchredux 5 21 5 21
lee 5 21 5 21
nbody 5 281 5 281
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 494 5 494
fib 5 318 5 318
getivar 5 436 5 436
keyword_args 5 373 5 373
respond_to 5 666 5 666
setivar 5 1359 5 1359
setivar_object 5 425 5 425
str_concat 5 460 5 460

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) 2283735 2281000 22 408 8 1% 0 0 0
hexapdf (click) 1716213 1714338 819 10416 217 2% 0 0 0
liquid-render (click) 567298 566234 156 1844 32 1% 0 0 0
mail (click) 1251700 1249364 373 4700 176 3% 0 0 0
psych-load (click) 782245 780782 70 651 19 2% 0 0 0
railsbench (click) 5539428 5537628 1779 14359 483 3% 0 0 0
ruby-lsp (click) 5384638 5382442 6428 41659 1539 3% 13154 0 0
sequel (click) 1455424 1453210 17 430 5 1% 0 0 0
binarytrees (click) 96244 93982 16 140 3 2% 0 0 0
chunky_png (click) 803055 802532 89 1182 31 2% 0 0 0
erubi (click) 741419 739920 13 149 4 2% 0 0 0
erubi_rails (click) 4670814 4669380 329 2837 111 3% 0 0 0
etanni (click) 144397 142490 13 108 3 2% 0 0 0
fannkuchredux (click) 107885 107242 14 273 3 1% 0 0 0
lee (click) 806007 804660 79 820 24 2% 0 0 0
nbody (click) 109125 108094 15 245 5 2% 0 0 0
optcarrot (click) 520808 518938 203 4449 92 2% 0 0 0
rubykon (click) 234953 232900 146 1632 30 1% 0 0 0
30k_ifelse (click) 5245189 5242908 9268 57200 3 0% 0 0 0
30k_methods (click) 1993463 1991910 5787 19427 3 0% 0 0 0
cfunc_itself (click) 93744 92254 13 123 3 2% 0 0 0
fib (click) 92325 91458 13 112 3 2% 0 0 0
getivar (click) 94088 92590 13 139 3 2% 0 0 0
keyword_args (click) 94528 92982 14 125 3 2% 0 0 0
respond_to (click) 94250 92738 13 139 4 2% 0 0 0
setivar (click) 93125 91870 13 119 3 2% 0 0 0
setivar_object (click) 93457 92018 13 119 3 2% 0 0 0
str_concat (click) 93983 92570 15 138 5 3% 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.