YJIT Benchmarks

Details for Benchmarks at 2022-05-19 19:13:59

Overall YJIT is 28.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 24.8% 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 5 189 75 189 20 189
hexapdf 5 15 20 15
liquid-render 5 135 75 135 20 135
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 48 75 48 20 48
erubi_rails 5 817 75 817 20 817
fannkuchredux 5 15 75 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 25 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 319 75 319 20 319
getivar 5 763 75 763 20 763
keyword_args 5 376 75 376 20 376
respond_to 5 107 75 107 20 107
setivar 5 1863 75 1863 20 1863
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) 1017883 756843 131 1274 0 0% 0 0 0
hexapdf (click) 1119963 879005 683 7747 9 0% 0 0 0
liquid-render (click) 504091 387293 150 1541 2 0% 0 0 0
mail (click) 917979 663559 374 5576 15 0% 0 0 0
psych-load (click) 339803 255583 68 457 1 0% 0 0 0
railsbench (click) 2645659 1931335 1436 9883 16 0% 0 0 0
binarytrees (click) 173275 129880 13 58 0 0% 0 0 0
chunky_png (click) 378331 283030 88 978 0 0% 0 0 0
discourse (click) 5956699 4418606 3196 25478 84 0% 2 0 0
erubi (click) 319323 242736 10 79 0 0% 0 0 0
erubi_rails (click) 1948123 1402076 300 1984 4 0% 0 0 0
fannkuchredux (click) 187291 140578 10 188 0 0% 0 0 0
lee (click) 377883 283523 58 622 0 0% 0 0 0
nbody (click) 182747 137081 12 158 0 0% 0 0 0
optcarrot (click) 513947 442330 207 3571 20 0% 0 0 0
rubykon (click) 320027 252329 144 1558 1 0% 0 0 0
30k_ifelse (click) 5562331 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2176987 1658370 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171291 128213 10 49 0 0% 0 0 0
fib (click) 169755 127821 10 38 0 0% 0 0 0
getivar (click) 172059 130628 10 65 0 0% 0 0 0
keyword_args (click) 172635 129150 11 51 0 0% 0 0 0
respond_to (click) 173915 129963 10 64 0 0% 0 0 0
setivar (click) 171995 129152 10 38 0 0% 0 0 0
str_concat (click) 171995 129472 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.