YJIT Benchmarks

Details for Benchmarks at 2022-04-29 19:12:43

Overall YJIT is 33.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.4% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 126 75 126 20 126
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 28 75 28 20 28
discourse 5 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 1017 75 1017 20 1017
fannkuchredux 5 15 73 15 20 15
lee 5 22 75 22 20 22
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 319 75 319 20 319
getivar 5 767 75 767 20 767
keyword_args 5 378 75 378 20 378
respond_to 5 104 75 104 20 104
setivar 5 1864 75 1864 20 1864
str_concat 5 204 75 204 20 204

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) 1006747 747849 131 1250 0 0% 0 0 0
hexapdf (click) 1092251 854965 682 7456 9 0% 0 0 0
liquid-render (click) 505563 386755 150 1586 2 0% 0 0 0
mail (click) 699803 526734 374 3259 15 0% 0 0 0
psych-load (click) 338459 254449 68 457 1 0% 0 0 0
railsbench (click) 2617435 1910521 1435 9821 16 0% 0 0 0
binarytrees (click) 171611 128872 13 54 0 0% 0 0 0
chunky_png (click) 373723 278808 88 960 0 0% 0 0 0
discourse (click) 5887259 4363381 3195 25271 83 0% 2 0 0
erubi (click) 321307 241828 10 79 0 0% 0 0 0
erubi_rails (click) 1924891 1384513 300 1976 4 0% 0 0 0
fannkuchredux (click) 186843 140297 10 188 0 0% 0 0 0
lee (click) 376987 282755 58 618 0 0% 0 0 0
nbody (click) 180571 135641 12 146 0 0% 0 0 0
optcarrot (click) 460379 395526 207 3017 20 0% 0 0 0
rubykon (click) 283227 221983 144 1170 0 0% 0 0 0
30k_ifelse (click) 5561435 4349594 9265 57804 0 0% 0 0 0
30k_methods (click) 2183259 1660534 5784 19403 0 0% 0 0 0
cfunc_itself (click) 170843 127899 10 49 0 0% 0 0 0
fib (click) 169307 127507 10 38 0 0% 0 0 0
getivar (click) 168731 127264 10 34 0 0% 0 0 0
keyword_args (click) 172187 128869 11 51 0 0% 0 0 0
respond_to (click) 172955 129353 10 64 0 0% 0 0 0
setivar (click) 171035 128542 10 38 0 0% 0 0 0
str_concat (click) 169563 127596 12 43 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.