YJIT Benchmarks

Details for Benchmarks at 2022-11-30 20:10:20

Overall YJIT is 34.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 37.5% 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 5 208 5 208
hexapdf 5 15 5 15
liquid-render 5 153 5 153
mail 5 123 5 123
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 277 5 277
binarytrees 5 84 5 84
chunky_png 5 30 5 30
erubi 5 70 5 70
erubi_rails 5 1138 5 1138
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 254 5 254
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 477 5 477
fib 5 331 5 331
getivar 5 425 5 425
keyword_args 5 384 5 384
respond_to 5 707 5 707
setivar 5 410 5 410
str_concat 5 433 5 433

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) 2261431 2260649 25 391 6 1% 0 0 0
hexapdf (click) 1690792 1689650 819 9856 218 2% 0 0 0
liquid-render (click) 574027 573465 156 1809 34 1% 0 0 0
mail (click) 1291973 1290238 373 5068 176 3% 0 0 0
psych-load (click) 781545 780547 70 607 19 3% 0 0 0
railsbench (click) 5482519 5481280 1779 13738 483 3% 0 0 0
ruby-lsp (click) 5281709 5281298 6428 40196 1522 3% 14104 0 0
binarytrees (click) 132072 131614 16 139 4 2% 0 0 0
chunky_png (click) 798795 797562 89 1164 31 2% 0 0 0
erubi (click) 725562 724154 13 147 4 2% 0 0 0
erubi_rails (click) 4630843 4629552 329 2674 111 4% 0 0 0
etanni (click) 131002 130976 13 107 4 3% 0 0 0
fannkuchredux (click) 143978 142446 13 269 4 1% 0 0 0
lee (click) 804247 803868 79 804 25 3% 0 0 0
nbody (click) 133946 132892 15 203 6 2% 0 0 0
optcarrot (click) 534076 533444 203 4071 93 2% 0 0 0
rubykon (click) 272602 271718 145 1607 32 1% 0 0 0
30k_ifelse (click) 5281265 5280801 9268 57196 4 0% 0 0 0
30k_methods (click) 2029214 2027152 5787 19425 4 0% 0 0 0
cfunc_itself (click) 129971 128000 13 122 4 3% 0 0 0
fib (click) 121327 119553 13 111 4 3% 0 0 0
getivar (click) 130363 128211 13 138 4 2% 0 0 0
keyword_args (click) 130761 128452 14 124 4 3% 0 0 0
respond_to (click) 123557 123119 13 138 5 3% 0 0 0
setivar (click) 123568 123119 13 111 4 3% 0 0 0
str_concat (click) 130236 128068 15 137 6 4% 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.