YJIT Benchmarks

Details for Benchmarks at 2022-08-08 05:15:18

Overall YJIT is 36.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.6% 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 5 196 75 196 20 196
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 31 75 31 20 31
erubi 5 62 75 62 20 62
erubi_rails 5 1032 75 1032 20 1032
fannkuchredux 5 15 75 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 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 446 75 446 20 446
fib 5 315 75 315 20 315
getivar 5 613 75 613 20 613
keyword_args 5 379 75 379 20 379
respond_to 5 106 75 106 20 106
setivar 5 959 75 959 20 959
str_concat 5 465 75 465 20 465

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) 1037659 781094 131 1287 0 0% 0 0 0
hexapdf (click) 1150939 924675 682 8013 9 0% 0 0 0
liquid-render (click) 514267 400163 150 1621 2 0% 0 0 0
mail (click) 930907 670742 374 5621 17 0% 0 0 0
psych-load (click) 348315 264154 68 482 1 0% 0 0 0
railsbench (click) 2656923 1968057 1436 10038 16 0% 0 0 0
binarytrees (click) 172443 128577 13 58 0 0% 0 0 0
chunky_png (click) 385435 288233 88 998 0 0% 0 0 0
erubi (click) 323867 246845 10 79 0 0% 0 0 0
erubi_rails (click) 1960859 1428135 300 2020 4 0% 0 0 0
fannkuchredux (click) 185307 138082 10 188 0 0% 0 0 0
lee (click) 386203 291615 58 632 0 0% 0 0 0
nbody (click) 182107 137147 12 171 0 0% 0 0 0
optcarrot (click) 513499 442314 207 3588 20 0% 0 0 0
rubykon (click) 321499 257148 144 1578 1 0% 0 0 0
30k_ifelse (click) 5560731 4348431 9265 57804 0 0% 0 0 0
30k_methods (click) 2176219 1657211 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170459 127021 10 49 0 0% 0 0 0
fib (click) 169435 126958 10 38 0 0% 0 0 0
getivar (click) 170715 128749 10 65 0 0% 0 0 0
keyword_args (click) 170843 127366 11 51 0 0% 0 0 0
respond_to (click) 172123 128179 10 64 0 0% 0 0 0
setivar (click) 170139 127240 10 38 0 0% 0 0 0
str_concat (click) 170587 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.