YJIT Benchmarks

Details for Benchmarks at 2022-06-12 20:14:18

Overall YJIT is 34.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.0% 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 5 190 75 190 20 190
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 64 75 64 20 64
chunky_png 5 29 75 29 20 29
discourse 5 41 75 41 20 41
erubi 5 49 75 49 20 49
erubi_rails 5 1000 75 1000 20 1000
fannkuchredux 5 15 52 15 20 15
lee 5 21 75 21 20 21
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 417 75 417 20 417
fib 5 320 75 320 20 320
getivar 5 762 75 762 20 762
keyword_args 5 377 75 377 20 377
respond_to 5 106 75 106 20 106
setivar 5 1843 75 1843 20 1843
str_concat 5 194 75 194 20 194

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) 1016667 756090 131 1268 0 0% 0 0 0
hexapdf (click) 1121179 880006 683 7762 10 0% 0 0 0
liquid-render (click) 507931 389036 150 1628 2 0% 0 0 0
mail (click) 901083 650778 374 5387 15 0% 0 0 0
psych-load (click) 339675 255124 68 457 1 0% 0 0 0
railsbench (click) 2622363 1917007 1436 9843 16 0% 0 0 0
binarytrees (click) 174107 130445 13 58 0 0% 0 0 0
chunky_png (click) 381083 284711 88 1003 0 0% 0 0 0
discourse (click) 5934171 4406270 3198 25550 85 0% 2 0 0
erubi (click) 319131 242668 10 79 0 0% 0 0 0
erubi_rails (click) 1929883 1390652 300 1979 4 0% 0 0 0
fannkuchredux (click) 186843 140282 10 188 0 0% 0 0 0
lee (click) 378331 283827 58 622 0 0% 0 0 0
nbody (click) 183579 137646 12 158 0 0% 0 0 0
optcarrot (click) 514779 442895 207 3571 20 0% 0 0 0
rubykon (click) 318939 251280 144 1532 1 0% 0 0 0
30k_ifelse (click) 5561883 4349908 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171099 128682 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 172187 128854 11 51 0 0% 0 0 0
respond_to (click) 174747 130528 10 64 0 0% 0 0 0
setivar (click) 171547 128856 10 38 0 0% 0 0 0
str_concat (click) 172827 130037 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.