YJIT Benchmarks

Details for Benchmarks at 2022-05-30 19:12:44

Overall YJIT is 30.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.2% 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.

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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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 139 75 139 20 139
mail 5 107 75 107 20 107
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
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 802 75 802 20 802
fannkuchredux 5 15 53 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 26 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 320 75 320 20 320
getivar 5 760 75 760 20 760
keyword_args 5 379 75 379 20 379
respond_to 5 104 75 104 20 104
setivar 5 1774 75 1774 20 1774
str_concat 5 196 75 196 20 196

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) 1018523 757186 131 1265 0 0% 0 0 0
hexapdf (click) 1119451 878241 682 7743 9 0% 0 0 0
liquid-render (click) 505371 387491 150 1553 2 0% 0 0 0
mail (click) 881947 638258 374 5258 15 0% 0 0 0
psych-load (click) 339675 255233 68 457 1 0% 0 0 0
railsbench (click) 2638235 1926602 1436 9830 16 0% 0 0 0
binarytrees (click) 173915 130095 13 58 0 0% 0 0 0
chunky_png (click) 377883 282327 88 975 0 0% 0 0 0
discourse (click) 5892955 4371382 3161 25036 82 0% 2 0 0
erubi (click) 317147 240997 10 79 0 0% 0 0 0
erubi_rails (click) 1954075 1405165 300 2029 4 0% 0 0 0
fannkuchredux (click) 186587 139932 10 188 0 0% 0 0 0
lee (click) 378267 283705 58 622 0 0% 0 0 0
nbody (click) 182363 136813 12 158 0 0% 0 0 0
optcarrot (click) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 320091 252087 144 1547 1 0% 0 0 0
30k_ifelse (click) 5561627 4349558 9265 57804 0 0% 0 0 0
30k_methods (click) 2178075 1658881 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172443 128724 10 49 0 0% 0 0 0
fib (click) 170843 128332 10 38 0 0% 0 0 0
getivar (click) 171355 129982 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 171291 128506 10 38 0 0% 0 0 0
str_concat (click) 172571 129687 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.