YJIT Benchmarks

Details for Benchmarks at 2022-08-29 20:14:13

Overall YJIT is 31.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.5% 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.

Want Raw Graphs and CSV?

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 5 159 75 159 20 159
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 62 75 62 20 62
chunky_png 5 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1018 75 1018 20 1018
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 66 56 20 56
30k_methods 5 22 22 22 20 22
cfunc_itself 5 420 75 420 20 420
fib 5 315 75 315 20 315
getivar 5 606 75 606 20 606
keyword_args 5 366 75 366 20 366
respond_to 5 109 75 109 20 109
setivar 5 982 75 982 20 982
str_concat 5 433 75 433 20 433

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) 1083587 749558 131 1279 0 0% 0 0 0
hexapdf (click) 1188739 871135 682 7419 8 0% 0 0 0
liquid-render (click) 553475 395088 150 1686 2 0% 0 0 0
mail (click) 993283 655497 374 5516 14 0% 0 0 0
psych-load (click) 377027 260513 68 482 1 0% 0 0 0
railsbench (click) 2766659 1880809 1436 9867 16 0% 0 0 0
binarytrees (click) 187907 127937 13 58 0 0% 0 0 0
chunky_png (click) 418435 286924 88 1002 0 0% 0 0 0
erubi (click) 358403 248450 10 79 0 0% 0 0 0
erubi_rails (click) 1992195 1331836 300 1985 4 0% 0 0 0
fannkuchredux (click) 202755 137705 10 196 0 0% 0 0 0
lee (click) 410371 281735 58 586 0 0% 0 0 0
nbody (click) 199811 137132 12 171 0 0% 0 0 0
optcarrot (click) 561347 436779 207 3545 20 0% 0 0 0
rubykon (click) 327043 237837 144 1351 1 0% 0 0 0
30k_ifelse (click) 5923715 4348405 9265 57804 0 0% 0 0 0
30k_methods (click) 2290755 1656582 5784 19361 0 0% 0 0 0
cfunc_itself (click) 186435 126710 10 49 0 0% 0 0 0
fib (click) 184771 126318 10 38 0 0% 0 0 0
getivar (click) 186691 128405 10 65 0 0% 0 0 0
keyword_args (click) 187203 127351 11 51 0 0% 0 0 0
respond_to (click) 188931 128164 10 64 0 0% 0 0 0
setivar (click) 186435 127225 10 38 0 0% 0 0 0
str_concat (click) 186435 127557 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.