YJIT Benchmarks

Details for Benchmarks at 2022-04-30 19:12:43

Overall YJIT is 32.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.5% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 126 75 126 20 126
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 28 75 28 20 28
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 978 75 978 20 978
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 439 75 439 20 439
fib 5 319 75 319 20 319
getivar 5 771 75 771 20 771
keyword_args 5 378 75 378 20 378
respond_to 5 93 75 93 20 93
setivar 5 1865 75 1865 20 1865
str_concat 5 198 75 198 20 198

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) 1008475 748887 131 1252 0 0% 0 0 0
hexapdf (click) 1092059 854637 682 7453 9 0% 0 0 0
liquid-render (click) 509787 389694 150 1611 2 0% 0 0 0
mail (click) 705883 531473 374 3324 15 0% 0 0 0
psych-load (click) 338459 254424 68 457 1 0% 0 0 0
railsbench (click) 2610139 1906384 1435 9769 16 0% 0 0 0
binarytrees (click) 171611 128872 13 54 0 0% 0 0 0
chunky_png (click) 369755 276545 88 903 0 0% 0 0 0
discourse (click) 5889435 4363851 3196 25297 83 0% 2 0 0
erubi (click) 321307 241828 10 79 0 0% 0 0 0
erubi_rails (click) 1925467 1385316 300 1980 4 0% 0 0 0
fannkuchredux (click) 186331 139968 10 188 0 0% 0 0 0
lee (click) 376731 282637 58 618 0 0% 0 0 0
nbody (click) 180571 135641 12 146 0 0% 0 0 0
optcarrot (click) 460379 395526 207 3017 20 0% 0 0 0
rubykon (click) 282395 221436 144 1162 0 0% 0 0 0
30k_ifelse (click) 5561883 4349923 9265 57804 0 0% 0 0 0
30k_methods (click) 2183387 1660474 5784 19407 0 0% 0 0 0
cfunc_itself (click) 170843 127899 10 49 0 0% 0 0 0
fib (click) 168795 127211 10 38 0 0% 0 0 0
getivar (click) 168731 127264 10 34 0 0% 0 0 0
keyword_args (click) 171675 128540 11 51 0 0% 0 0 0
respond_to (click) 172955 129353 10 64 0 0% 0 0 0
setivar (click) 170971 128542 10 38 0 0% 0 0 0
str_concat (click) 169499 127596 12 43 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.