YJIT Benchmarks

Details for Benchmarks at 2022-06-10 20:14:16

Overall YJIT is 34.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.6% 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 5 189 75 189 20 189
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 124 75 124 20 124
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 30 75 30 20 30
discourse 5 36 75 36 20 36
erubi 5 49 75 49 20 49
erubi_rails 5 984 75 984 20 984
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 320 75 320 20 320
getivar 5 764 75 764 20 764
keyword_args 5 373 75 373 20 373
respond_to 5 108 75 108 20 108
setivar 5 1743 75 1743 20 1743
str_concat 5 193 75 193 20 193

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) 1016795 756453 131 1257 0 0% 0 0 0
hexapdf (click) 1120411 879274 682 7753 9 0% 0 0 0
liquid-render (click) 509083 389990 150 1608 2 0% 0 0 0
mail (click) 885915 641382 374 5280 15 0% 0 0 0
psych-load (click) 339675 255124 68 457 1 0% 0 0 0
railsbench (click) 2626779 1920261 1436 9884 16 0% 0 0 0
binarytrees (click) 172827 129584 13 58 0 0% 0 0 0
chunky_png (click) 381979 285258 88 1012 0 0% 0 0 0
discourse (click) 5879643 4367448 3162 25118 83 0% 2 0 0
erubi (click) 319515 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1926619 1388604 300 1953 4 0% 0 0 0
fannkuchredux (click) 188123 141143 10 188 0 0% 0 0 0
lee (click) 378331 283827 58 622 0 0% 0 0 0
nbody (click) 183579 137511 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 319643 251965 144 1541 2 0% 0 0 0
30k_ifelse (click) 5563291 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171227 128682 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174747 130528 10 64 0 0% 0 0 0
setivar (click) 172955 129717 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 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.