YJIT Benchmarks

Details for Benchmarks at 2022-07-27 05:21:42

Overall YJIT is 34.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.7% 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 5 160 75 160 20 160
mail 5 126 75 126 20 126
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 31 75 31 20 31
erubi 5 61 75 61 20 61
erubi_rails 5 1012 75 1012 20 1012
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 418 75 418 20 418
fib 5 315 75 315 20 315
getivar 5 615 75 615 20 615
keyword_args 5 374 75 374 20 374
respond_to 5 108 75 108 20 108
setivar 5 958 75 958 20 958
str_concat 5 457 75 457 20 457

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) 1038427 780222 131 1265 0 0% 0 0 0
hexapdf (click) 1151579 925010 683 7970 9 0% 0 0 0
liquid-render (click) 517403 403137 150 1709 2 0% 0 0 0
mail (click) 927067 667194 374 5577 17 0% 0 0 0
psych-load (click) 347739 263500 68 474 1 0% 0 0 0
railsbench (click) 2653787 1965999 1436 9948 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 389339 290882 88 1027 0 0% 0 0 0
erubi (click) 323675 246699 10 79 0 0% 0 0 0
erubi_rails (click) 1959963 1427755 300 1999 4 0% 0 0 0
fannkuchredux (click) 186075 138504 10 188 0 0% 0 0 0
lee (click) 385947 291264 58 630 0 0% 0 0 0
nbody (click) 182363 137273 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 321115 256677 144 1569 1 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2175963 1657008 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170267 126851 10 49 0 0% 0 0 0
fib (click) 169179 126755 10 38 0 0% 0 0 0
getivar (click) 170907 128842 10 65 0 0% 0 0 0
keyword_args (click) 171547 127788 11 51 0 0% 0 0 0
respond_to (click) 172827 128601 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170395 127773 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.