YJIT Benchmarks

Details for Benchmarks at 2022-06-24 20:14:30

Overall YJIT is 34.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.6% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 125 75 125 20 125
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 29 75 29 20 29
erubi 5 50 75 50 20 50
erubi_rails 5 939 75 939 20 939
fannkuchredux 5 15 57 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 34 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 450 75 450 20 450
fib 5 315 75 315 20 315
getivar 5 759 75 759 20 759
keyword_args 5 378 75 378 20 378
respond_to 5 102 75 102 20 102
setivar 5 1868 75 1868 20 1868
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) 1015835 755541 131 1260 0 0% 0 0 0
hexapdf (click) 1120091 879253 682 7754 10 0% 0 0 0
liquid-render (click) 512731 392745 150 1628 2 0% 0 0 0
mail (click) 910363 658132 374 5509 15 0% 0 0 0
psych-load (click) 339035 254740 68 457 1 0% 0 0 0
railsbench (click) 2621339 1917176 1436 9861 16 0% 0 0 0
binarytrees (click) 173531 130178 13 58 0 0% 0 0 0
chunky_png (click) 379867 283719 88 1002 0 0% 0 0 0
erubi (click) 318875 242402 10 79 0 0% 0 0 0
erubi_rails (click) 1925531 1387786 300 1960 4 0% 0 0 0
fannkuchredux (click) 187227 140498 10 188 0 0% 0 0 0
lee (click) 377691 283343 58 622 0 0% 0 0 0
nbody (click) 182683 137001 12 158 0 0% 0 0 0
optcarrot (click) 513883 442250 207 3571 20 0% 0 0 0
rubykon (click) 317915 250778 144 1537 1 0% 0 0 0
30k_ifelse (click) 5562267 4350124 9265 57804 0 0% 0 0 0
30k_methods (click) 2177435 1658586 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171739 128429 10 49 0 0% 0 0 0
fib (click) 170203 128037 10 38 0 0% 0 0 0
getivar (click) 171483 130252 10 65 0 0% 0 0 0
keyword_args (click) 173403 129777 11 51 0 0% 0 0 0
respond_to (click) 173659 129965 10 64 0 0% 0 0 0
setivar (click) 172379 129563 10 38 0 0% 0 0 0
str_concat (click) 171739 129474 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.