YJIT Benchmarks

Details for Benchmarks at 2022-08-08 20:14:01

Overall YJIT is 35.0% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 129 75 129 20 129
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 30 75 30 20 30
erubi 5 63 75 63 20 63
erubi_rails 5 1021 75 1021 20 1021
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 438 75 438 20 438
fib 5 315 75 315 20 315
getivar 5 614 75 614 20 614
keyword_args 5 373 75 373 20 373
respond_to 5 106 75 106 20 106
setivar 5 957 75 957 20 957
str_concat 5 466 75 466 20 466

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) 1037083 780094 131 1288 0 0% 0 0 0
hexapdf (click) 1149659 923689 682 8011 9 0% 0 0 0
liquid-render (click) 521883 405873 150 1705 2 0% 0 0 0
mail (click) 911515 657647 374 5431 17 0% 0 0 0
psych-load (click) 346011 262324 68 482 1 0% 0 0 0
railsbench (click) 2653979 1965392 1436 10017 16 0% 0 0 0
binarytrees (click) 171867 128248 13 58 0 0% 0 0 0
chunky_png (click) 385883 288711 88 1000 0 0% 0 0 0
erubi (click) 322843 245914 10 79 0 0% 0 0 0
erubi_rails (click) 1965531 1431877 300 2051 4 0% 0 0 0
fannkuchredux (click) 185691 138378 10 188 0 0% 0 0 0
lee (click) 385115 290709 58 632 0 0% 0 0 0
nbody (click) 182491 137443 12 171 0 0% 0 0 0
optcarrot (click) 513883 442610 207 3588 20 0% 0 0 0
rubykon (click) 320539 256496 144 1568 1 0% 0 0 0
30k_ifelse (click) 5560923 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2176091 1657178 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127021 10 49 0 0% 0 0 0
fib (click) 168859 126629 10 38 0 0% 0 0 0
getivar (click) 170587 128716 10 65 0 0% 0 0 0
keyword_args (click) 171227 127662 11 51 0 0% 0 0 0
respond_to (click) 172059 128179 10 64 0 0% 0 0 0
setivar (click) 170523 127536 10 38 0 0% 0 0 0
str_concat (click) 170523 127868 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.