YJIT Benchmarks

Details for Benchmarks at 2022-05-20 07:13:11

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.8% 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 5 133 75 133 20 133
mail 5 108 75 108 20 108
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 30 75 30 20 30
discourse 5 38 75 38 20 38
erubi 5 45 75 45 20 45
erubi_rails 5 788 75 788 20 788
fannkuchredux 5 15 51 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 26 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 442 75 442 20 442
fib 5 319 75 319 20 319
getivar 5 762 75 762 20 762
keyword_args 5 376 75 376 20 376
respond_to 5 107 75 107 20 107
setivar 5 1865 75 1865 20 1865
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) 1014363 754714 131 1240 0 0% 0 0 0
hexapdf (click) 1120155 878995 682 7747 10 0% 0 0 0
liquid-render (click) 502171 385369 150 1545 2 0% 0 0 0
mail (click) 893979 646835 374 5347 15 0% 0 0 0
psych-load (click) 339483 255124 68 457 1 0% 0 0 0
railsbench (click) 2629531 1920422 1436 9736 16 0% 0 0 0
binarytrees (click) 172763 129584 13 58 0 0% 0 0 0
chunky_png (click) 379931 284032 88 997 0 0% 0 0 0
discourse (click) 5959643 4420846 3196 25503 84 0% 2 0 0
erubi (click) 319067 242668 10 79 0 0% 0 0 0
erubi_rails (click) 1949403 1403117 300 1986 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 378267 283827 58 622 0 0% 0 0 0
nbody (click) 182747 137081 12 158 0 0% 0 0 0
optcarrot (click) 513435 442034 207 3571 20 0% 0 0 0
rubykon (click) 318747 251488 144 1540 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) 171931 128509 10 49 0 0% 0 0 0
fib (click) 170267 128117 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) 173851 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.