YJIT Benchmarks

Details for Benchmarks at 2022-06-22 20:14:27

Overall YJIT is 34.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.1% 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 5 196 75 196 20 196
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 117 75 117 20 117
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 67 75 67 20 67
chunky_png 5 30 75 30 20 30
erubi 5 51 75 51 20 51
erubi_rails 5 1003 75 1003 20 1003
fannkuchredux 5 15 52 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 33 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 428 75 428 20 428
fib 5 315 75 315 20 315
getivar 5 765 75 765 20 765
keyword_args 5 378 75 378 20 378
respond_to 5 105 75 105 20 105
setivar 5 1883 75 1883 20 1883
str_concat 5 205 75 205 20 205

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) 1013083 753803 131 1254 0 0% 0 0 0
hexapdf (click) 1119387 878752 682 7749 9 0% 0 0 0
liquid-render (click) 515419 395398 150 1663 2 0% 0 0 0
mail (click) 892059 645004 374 5330 15 0% 0 0 0
psych-load (click) 339035 254740 68 457 1 0% 0 0 0
railsbench (click) 2623579 1918742 1436 9873 16 0% 0 0 0
binarytrees (click) 173211 129800 13 58 0 0% 0 0 0
chunky_png (click) 379099 283360 88 995 0 0% 0 0 0
erubi (click) 318875 242377 10 79 0 0% 0 0 0
erubi_rails (click) 1927899 1389710 300 1962 4 0% 0 0 0
fannkuchredux (click) 187227 140498 10 188 0 0% 0 0 0
lee (click) 377755 283393 58 622 0 0% 0 0 0
nbody (click) 182555 136866 12 158 0 0% 0 0 0
optcarrot (click) 513371 441954 207 3571 20 0% 0 0 0
rubykon (click) 317851 250826 144 1538 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) 171227 128133 10 49 0 0% 0 0 0
fib (click) 169691 127741 10 38 0 0% 0 0 0
getivar (click) 171995 130548 10 65 0 0% 0 0 0
keyword_args (click) 172571 129070 11 51 0 0% 0 0 0
respond_to (click) 173851 129883 10 64 0 0% 0 0 0
setivar (click) 171931 129072 10 38 0 0% 0 0 0
str_concat (click) 171931 129392 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.