YJIT Benchmarks

Details for Benchmarks at 2022-11-20 20:10:18

Overall YJIT is 36.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 38.2% 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 YJIT warmups YJIT iters
activerecord 5 205 5 205
hexapdf 5 15 5 15
liquid-render 5 177 5 177
mail 5 123 5 123
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 239 5 239
binarytrees 5 85 5 85
chunky_png 5 32 5 32
erubi 5 66 5 66
erubi_rails 5 1108 5 1108
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 233 5 233
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 483 5 483
fib 5 326 5 326
getivar 5 428 5 428
keyword_args 5 381 5 381
respond_to 5 642 5 642
setivar 5 377 5 377
str_concat 5 436 5 436

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) 2289778 2288136 25 376 6 1% 0 0 0
hexapdf (click) 1769252 1768975 819 10271 218 2% 0 0 0
liquid-render (click) 589565 589460 156 1842 34 1% 0 0 0
mail (click) 1332371 1330641 373 5168 176 3% 0 0 0
psych-load (click) 789315 788219 70 639 19 2% 0 0 0
railsbench (click) 5604991 5603711 1779 13933 484 3% 0 0 0
ruby-lsp (click) 5420519 5420074 6425 40527 1521 3% 14054 0 0
binarytrees (click) 134623 133361 16 139 4 2% 0 0 0
chunky_png (click) 823161 821959 89 1209 31 2% 0 0 0
erubi (click) 745506 745230 13 147 4 2% 0 0 0
erubi_rails (click) 4728222 4727034 329 2694 111 4% 0 0 0
etanni (click) 135393 133981 13 107 4 3% 0 0 0
fannkuchredux (click) 146649 144465 13 269 4 1% 0 0 0
lee (click) 824959 823174 79 804 25 3% 0 0 0
nbody (click) 148318 147793 15 248 6 2% 0 0 0
optcarrot (click) 556602 554056 203 4133 93 2% 0 0 0
rubykon (click) 281048 280097 146 1657 32 1% 0 0 0
30k_ifelse (click) 5403089 5402946 9268 57196 4 0% 0 0 0
30k_methods (click) 2094588 2092547 5787 19425 4 0% 0 0 0
cfunc_itself (click) 132545 132096 13 122 4 3% 0 0 0
fib (click) 131088 131044 13 111 4 3% 0 0 0
getivar (click) 132937 132287 13 138 4 2% 0 0 0
keyword_args (click) 133344 132513 14 124 4 3% 0 0 0
respond_to (click) 133068 132355 13 138 5 3% 0 0 0
setivar (click) 133337 132513 13 111 4 3% 0 0 0
str_concat (click) 132771 132287 15 137 6 4% 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.