YJIT Benchmarks

Details for Benchmarks at 2022-04-30 07:12:54

Overall YJIT is 32.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.9% 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 5 192 75 192 20 192
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 64 75 64 20 64
chunky_png 5 28 75 28 20 28
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 1007 75 1007 20 1007
fannkuchredux 5 15 74 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 5 446 75 446 20 446
fib 5 319 75 319 20 319
getivar 5 759 75 759 20 759
keyword_args 5 368 75 368 20 368
respond_to 5 105 75 105 20 105
setivar 5 1865 75 1865 20 1865
str_concat 5 197 75 197 20 197

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) 1006875 747749 131 1240 0 0% 0 0 0
hexapdf (click) 1092123 854797 682 7455 10 0% 0 0 0
liquid-render (click) 506395 387394 150 1582 2 0% 0 0 0
mail (click) 703323 528829 374 3292 15 0% 0 0 0
psych-load (click) 338139 254331 68 457 1 0% 0 0 0
railsbench (click) 2615067 1909297 1435 9789 16 0% 0 0 0
binarytrees (click) 171611 128872 13 54 0 0% 0 0 0
chunky_png (click) 371291 277316 88 928 0 0% 0 0 0
discourse (click) 5873499 4353520 3197 25201 83 0% 2 0 0
erubi (click) 321051 241685 10 79 0 0% 0 0 0
erubi_rails (click) 1925339 1385013 300 1974 4 0% 0 0 0
fannkuchredux (click) 186267 139968 10 188 0 0% 0 0 0
lee (click) 376667 282637 58 618 0 0% 0 0 0
nbody (click) 180571 135641 12 146 0 0% 0 0 0
optcarrot (click) 459867 395230 207 3017 20 0% 0 0 0
rubykon (click) 282011 221153 144 1162 1 0% 0 0 0
30k_ifelse (click) 5561371 4349594 9265 57804 0 0% 0 0 0
30k_methods (click) 2176539 1658056 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170779 127899 10 49 0 0% 0 0 0
fib (click) 169243 127507 10 38 0 0% 0 0 0
getivar (click) 168731 127264 10 34 0 0% 0 0 0
keyword_args (click) 171675 128573 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) 170075 127925 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.