YJIT Benchmarks

Details for Benchmarks at 2023-01-10 04:10:28

Overall YJIT is 36.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 38.2% 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 5 209 5 209
hexapdf 5 15 5 15
liquid-render 5 179 5 179
mail 5 139 5 139
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 292 5 292
sequel 15 15 15 15
binarytrees 5 85 5 85
chunky_png 5 33 5 33
erubi 5 66 5 66
erubi_rails 5 1160 5 1160
etanni 5 41 5 41
fannkuchredux 5 21 5 21
lee 5 21 5 21
nbody 5 278 5 278
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 49 5 49
30k_methods 5 20 5 20
cfunc_itself 5 496 5 496
fib 5 318 5 318
getivar 5 437 5 437
keyword_args 5 374 5 374
respond_to 5 706 5 706
setivar 5 1359 5 1359
setivar_object 5 426 5 426
str_concat 5 495 5 495

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) 2275005 2272490 22 390 8 2% 0 0 0
hexapdf (click) 1716195 1714358 819 10435 217 2% 0 0 0
liquid-render (click) 568099 566746 156 1852 32 1% 0 0 0
mail (click) 1245051 1244576 373 4652 176 3% 0 0 0
psych-load (click) 780176 779326 70 651 19 2% 0 0 0
railsbench (click) 5529281 5528314 1779 14340 483 3% 0 0 0
ruby-lsp (click) 5389680 5388564 6428 41749 1538 3% 13204 0 0
sequel (click) 1450956 1450490 17 428 5 1% 0 0 0
binarytrees (click) 96267 94002 16 140 3 2% 0 0 0
chunky_png (click) 801043 798802 89 1176 31 2% 0 0 0
erubi (click) 740694 739360 13 149 4 2% 0 0 0
erubi_rails (click) 4665124 4662778 329 2828 111 3% 0 0 0
etanni (click) 144287 142402 13 108 3 2% 0 0 0
fannkuchredux (click) 108481 107742 14 273 3 1% 0 0 0
lee (click) 805097 804168 79 820 24 2% 0 0 0
nbody (click) 109148 108114 15 245 5 2% 0 0 0
optcarrot (click) 519950 518430 203 4439 92 2% 0 0 0
rubykon (click) 235661 233284 146 1641 30 1% 0 0 0
30k_ifelse (click) 5245212 5242928 9268 57200 3 0% 0 0 0
30k_methods (click) 1993486 1991930 5787 19427 3 0% 0 0 0
cfunc_itself (click) 93752 92274 13 123 3 2% 0 0 0
fib (click) 92325 91458 13 112 3 2% 0 0 0
getivar (click) 94099 92610 13 139 3 2% 0 0 0
keyword_args (click) 94538 93002 14 125 3 2% 0 0 0
respond_to (click) 94263 92758 13 139 4 2% 0 0 0
setivar (click) 93138 91890 13 119 3 2% 0 0 0
setivar_object (click) 93480 92038 13 119 3 2% 0 0 0
str_concat (click) 94011 92590 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.