YJIT Benchmarks

Details for Benchmarks at 2022-07-20 20:14:24

Overall YJIT is 35.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.5% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 67 75 67 20 67
chunky_png 5 30 75 30 20 30
erubi 5 57 75 57 20 57
erubi_rails 5 1009 75 1009 20 1009
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
nbody 5 253 75 253 20 253
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 315 75 315 20 315
getivar 5 612 75 612 20 612
keyword_args 5 373 75 373 20 373
respond_to 5 110 75 110 20 110
setivar 5 954 75 954 20 954
str_concat 5 371 75 371 20 371

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) 1031963 775079 131 1244 0 0% 0 0 0
hexapdf (click) 1152027 925617 682 7976 9 0% 0 0 0
liquid-render (click) 520027 404623 150 1671 2 0% 0 0 0
mail (click) 933723 672736 374 5632 17 0% 0 0 0
psych-load (click) 348315 263786 68 476 1 0% 0 0 0
railsbench (click) 2649115 1959701 1436 9875 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 386523 289081 88 995 0 0% 0 0 0
erubi (click) 323739 246842 10 79 0 0% 0 0 0
erubi_rails (click) 1961627 1428817 300 2007 4 0% 0 0 0
fannkuchredux (click) 186011 138504 10 188 0 0% 0 0 0
lee (click) 387163 292313 58 630 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 323035 258181 144 1586 2 0% 0 0 0
30k_ifelse (click) 5560795 4348546 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657304 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170267 126851 10 49 0 0% 0 0 0
fib (click) 169179 126755 10 38 0 0% 0 0 0
getivar (click) 170907 128842 10 65 0 0% 0 0 0
keyword_args (click) 171547 127788 11 51 0 0% 0 0 0
respond_to (click) 172827 128601 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170843 128069 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.