YJIT Benchmarks

Details for Benchmarks at 2022-09-18 20:11:32

Overall YJIT is 36.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.3% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 170 75 170 20 170
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 84 75 84 20 84
chunky_png 5 30 75 30 20 30
erubi 5 67 75 67 20 67
erubi_rails 5 1050 75 1050 20 1050
fannkuchredux 5 15 56 15 20 15
lee 5 20 75 20 20 20
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 54 69 54 20 54
30k_methods 5 25 23 25 20 25
cfunc_itself 5 423 75 423 20 423
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 364 75 364 20 364
respond_to 5 665 75 665 20 665
setivar 5 402 75 402 20 402
str_concat 5 418 75 418 20 418

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) 1064759 775290 131 1289 0 0% 0 0 0
hexapdf (click) 1176823 918540 682 8043 10 0% 0 0 0
liquid-render (click) 520119 394381 150 1664 2 0% 0 0 0
mail (click) 926135 646302 374 5373 17 0% 0 0 0
psych-load (click) 354103 259329 68 474 1 0% 0 0 0
railsbench (click) 2722935 1956343 1436 10035 16 0% 0 0 0
binarytrees (click) 177463 128043 13 64 0 0% 0 0 0
chunky_png (click) 397239 287412 88 996 0 0% 0 0 0
erubi (click) 341111 250569 10 79 0 0% 0 0 0
erubi_rails (click) 2016375 1424308 300 2052 4 0% 0 0 0
fannkuchredux (click) 189815 136544 10 196 0 0% 0 0 0
lee (click) 394807 287182 58 634 0 0% 0 0 0
nbody (click) 186999 136021 12 171 0 0% 0 0 0
optcarrot (click) 531831 441312 207 3592 20 0% 0 0 0
rubykon (click) 330103 255778 144 1582 1 0% 0 0 0
30k_ifelse (click) 5664247 4347294 9265 57804 0 0% 0 0 0
30k_methods (click) 2208503 1655756 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174391 125599 10 49 0 0% 0 0 0
fib (click) 172727 125207 10 38 0 0% 0 0 0
getivar (click) 174839 127647 10 65 0 0% 0 0 0
keyword_args (click) 175095 126240 11 51 0 0% 0 0 0
respond_to (click) 174647 126813 10 64 0 0% 0 0 0
setivar (click) 174455 126114 10 38 0 0% 0 0 0
str_concat (click) 174391 126446 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.