YJIT Benchmarks

Details for Benchmarks at 2022-05-09 19:15:18

Overall YJIT is 30.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.5% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 1008 75 1008 20 1008
fannkuchredux 5 15 73 15 20 15
lee 5 22 75 22 20 22
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 449 75 449 20 449
fib 5 319 75 319 20 319
getivar 5 764 75 764 20 764
keyword_args 5 377 75 377 20 377
respond_to 5 109 75 109 20 109
setivar 5 1849 75 1849 20 1849
str_concat 5 196 75 196 20 196

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) 1011099 751111 131 1231 0 0% 0 0 0
hexapdf (click) 1115611 874696 682 7711 10 0% 0 0 0
liquid-render (click) 509467 390723 150 1606 2 0% 0 0 0
mail (click) 909659 657329 374 5504 15 0% 0 0 0
psych-load (click) 339547 255149 68 457 1 0% 0 0 0
railsbench (click) 2623707 1914979 1435 9844 16 0% 0 0 0
binarytrees (click) 171803 128729 13 58 0 0% 0 0 0
chunky_png (click) 375451 280836 88 961 0 0% 0 0 0
discourse (click) 5926555 4391257 3221 25564 84 0% 2 0 0
erubi (click) 322715 242987 10 79 0 0% 0 0 0
erubi_rails (click) 1932635 1390320 300 2002 4 0% 0 0 0
fannkuchredux (click) 185819 139427 10 188 0 0% 0 0 0
lee (click) 377947 283430 58 618 0 0% 0 0 0
nbody (click) 181339 135930 12 158 0 0% 0 0 0
optcarrot (click) 512475 441179 207 3571 20 0% 0 0 0
rubykon (click) 317403 250267 144 1541 1 0% 0 0 0
30k_ifelse (click) 5560923 4349053 9265 57804 0 0% 0 0 0
30k_methods (click) 2175579 1657219 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127358 10 49 0 0% 0 0 0
fib (click) 168859 126966 10 38 0 0% 0 0 0
getivar (click) 170651 129477 10 65 0 0% 0 0 0
keyword_args (click) 171163 127999 11 51 0 0% 0 0 0
respond_to (click) 172507 128812 10 64 0 0% 0 0 0
setivar (click) 170587 128001 10 38 0 0% 0 0 0
str_concat (click) 170587 128321 12 62 0 0% 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.