YJIT Benchmarks

Details for Benchmarks at 2023-01-09 20:10:23

Overall YJIT is 36.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 40.8% 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 5 212 5 212
hexapdf 5 15 5 15
liquid-render 5 177 5 177
mail 5 141 5 141
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 291 5 291
sequel 15 15 15 15
binarytrees 5 85 5 85
chunky_png 5 32 5 32
erubi 5 67 5 67
erubi_rails 5 1149 5 1149
etanni 5 42 5 42
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 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 495 5 495
fib 5 318 5 318
getivar 5 436 5 436
keyword_args 5 368 5 368
respond_to 5 706 5 706
setivar 5 1360 5 1360
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) 2285305 2284826 33 483 8 1% 0 0 0
hexapdf (click) 1714489 1713110 819 10424 217 2% 0 0 0
liquid-render (click) 567613 566450 156 1849 32 1% 0 0 0
mail (click) 1247614 1246468 373 4668 176 3% 0 0 0
psych-load (click) 779920 779258 70 651 19 2% 0 0 0
railsbench (click) 5534123 5534012 1779 14373 483 3% 0 0 0
ruby-lsp (click) 5388801 5388104 6428 41724 1536 3% 14854 0 0
sequel (click) 1451009 1450510 17 428 5 1% 0 0 0
binarytrees (click) 96267 94002 16 140 3 2% 0 0 0
chunky_png (click) 803773 803128 89 1192 31 2% 0 0 0
erubi (click) 740776 739380 13 149 4 2% 0 0 0
erubi_rails (click) 4662181 4660950 329 2832 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) 805312 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) 235878 233568 146 1645 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.