YJIT Benchmarks

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

Overall YJIT is 35.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 38.1% 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 5 177 5 177
hexapdf 5 15 5 15
liquid-render 5 178 5 178
mail 5 140 5 140
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 259 5 259
sequel 5 136 5 136
binarytrees 5 85 5 85
chunky_png 5 32 5 32
erubi 5 67 5 67
erubi_rails 5 1152 5 1152
etanni 5 41 5 41
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 5 496 5 496
fib 5 318 5 318
getivar 5 436 5 436
keyword_args 5 382 5 382
respond_to 5 704 5 704
setivar 5 1359 5 1359
setivar_object 5 425 5 425
str_concat 5 459 5 459

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) 2274623 2272282 22 351 8 2% 0 0 0
hexapdf (click) 1715693 1714142 819 10415 217 2% 0 0 0
liquid-render (click) 569280 567690 156 1845 32 1% 0 0 0
mail (click) 1248016 1246616 373 4659 176 3% 0 0 0
psych-load (click) 781094 779886 70 651 19 2% 0 0 0
railsbench (click) 5502694 5502032 1779 14167 483 3% 0 0 0
ruby-lsp (click) 5390484 5389076 6428 41739 1536 3% 13154 0 0
sequel (click) 1444282 1443060 17 428 5 1% 0 0 0
binarytrees (click) 96244 93982 16 140 3 2% 0 0 0
chunky_png (click) 801933 799310 89 1181 31 2% 0 0 0
erubi (click) 740519 739172 13 149 4 2% 0 0 0
erubi_rails (click) 4662433 4661126 329 2825 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) 805478 804296 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) 235545 233244 146 1638 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.