YJIT Benchmarks

Details for Benchmarks at 2022-12-01 20:10:03

Overall YJIT is 36.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.9% 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 5 191 5 191
hexapdf 5 15 5 15
liquid-render 5 155 5 155
mail 5 135 5 135
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 274 5 274
binarytrees 5 86 5 86
chunky_png 5 32 5 32
erubi 5 69 5 69
erubi_rails 5 1117 5 1117
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 243 5 243
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 49 5 49
30k_methods 5 20 5 20
cfunc_itself 5 487 5 487
fib 5 326 5 326
getivar 5 438 5 438
keyword_args 5 382 5 382
respond_to 5 649 5 649
setivar 5 398 5 398
str_concat 5 456 5 456

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) 2253710 2252933 25 331 6 1% 0 0 0
hexapdf (click) 1688921 1688250 819 9834 216 2% 0 0 0
liquid-render (click) 531883 529566 156 1794 33 1% 0 0 0
mail (click) 1234520 1232788 373 4459 176 3% 0 0 0
psych-load (click) 778379 777999 70 607 19 3% 0 0 0
railsbench (click) 5489454 5488307 1779 13832 482 3% 0 0 0
ruby-lsp (click) 5289213 5288955 6428 40302 1522 3% 13954 0 0
binarytrees (click) 124261 123885 16 139 4 2% 0 0 0
chunky_png (click) 801405 799581 89 1166 31 2% 0 0 0
erubi (click) 727889 726000 13 147 4 2% 0 0 0
erubi_rails (click) 4624823 4622855 329 2679 111 4% 0 0 0
etanni (click) 132227 131807 13 107 4 3% 0 0 0
fannkuchredux (click) 143395 142142 13 269 4 1% 0 0 0
lee (click) 804660 804054 79 804 25 3% 0 0 0
nbody (click) 136801 134988 15 235 6 2% 0 0 0
optcarrot (click) 538904 537064 203 4052 93 2% 0 0 0
rubykon (click) 264590 263700 145 1608 31 1% 0 0 0
30k_ifelse (click) 5273404 5272879 9268 57196 4 0% 0 0 0
30k_methods (click) 2021424 2019250 5787 19425 4 0% 0 0 0
cfunc_itself (click) 129400 127573 13 122 4 3% 0 0 0
fib (click) 120768 118995 13 111 4 3% 0 0 0
getivar (click) 122579 120266 13 138 4 2% 0 0 0
keyword_args (click) 130188 128068 14 124 4 3% 0 0 0
respond_to (click) 122697 120291 13 138 5 3% 0 0 0
setivar (click) 121189 119387 13 111 4 3% 0 0 0
str_concat (click) 122426 120148 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.