YJIT Benchmarks

Details for Benchmarks at 2022-06-25 20:14:31

Overall YJIT is 33.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.8% 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 5 154 75 154 20 154
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
erubi 5 51 75 51 20 51
erubi_rails 5 953 75 953 20 953
fannkuchredux 5 15 56 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 31 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 429 75 429 20 429
fib 5 315 75 315 20 315
getivar 5 759 75 759 20 759
keyword_args 5 378 75 378 20 378
respond_to 5 103 75 103 20 103
setivar 5 1867 75 1867 20 1867
str_concat 5 203 75 203 20 203

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) 1010843 752055 131 1231 0 0% 0 0 0
hexapdf (click) 1119707 878825 682 7754 10 0% 0 0 0
liquid-render (click) 511771 392500 150 1633 2 0% 0 0 0
mail (click) 900187 650667 374 5397 15 0% 0 0 0
psych-load (click) 338971 254765 68 457 1 0% 0 0 0
railsbench (click) 2621723 1917679 1436 9864 16 0% 0 0 0
binarytrees (click) 172635 129504 13 58 0 0% 0 0 0
chunky_png (click) 383259 285913 88 1030 0 0% 0 0 0
erubi (click) 318811 242377 10 79 0 0% 0 0 0
erubi_rails (click) 1925147 1387272 300 1954 4 0% 0 0 0
fannkuchredux (click) 187163 140498 10 188 0 0% 0 0 0
lee (click) 380315 285143 58 643 0 0% 0 0 0
nbody (click) 182619 137001 12 158 0 0% 0 0 0
optcarrot (click) 513819 442250 207 3571 20 0% 0 0 0
rubykon (click) 318619 251245 144 1539 1 0% 0 0 0
30k_ifelse (click) 5562203 4350124 9265 57804 0 0% 0 0 0
30k_methods (click) 2177371 1658586 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171675 128429 10 49 0 0% 0 0 0
fib (click) 170139 128037 10 38 0 0% 0 0 0
getivar (click) 171931 130548 10 65 0 0% 0 0 0
keyword_args (click) 172507 129070 11 51 0 0% 0 0 0
respond_to (click) 173275 129587 10 64 0 0% 0 0 0
setivar (click) 171867 129072 10 38 0 0% 0 0 0
str_concat (click) 171867 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.