YJIT Benchmarks

Details for Benchmarks at 2022-07-03 05:14:02

Overall YJIT is 36.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.9% 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 5 158 75 158 20 158
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 30 75 30 20 30
erubi 5 52 75 52 20 52
erubi_rails 5 987 75 987 20 987
fannkuchredux 5 15 57 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 33 15 20 15
30k_ifelse 5 53 75 53 20 53
30k_methods 5 22 29 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 315 75 315 20 315
getivar 5 775 75 775 20 775
keyword_args 5 378 75 378 20 378
respond_to 5 109 75 109 20 109
setivar 5 1854 75 1854 20 1854
str_concat 5 382 75 382 20 382

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) 1028443 763884 131 1260 0 0% 0 0 0
hexapdf (click) 1123419 881405 683 7754 10 0% 0 0 0
liquid-render (click) 512091 392387 150 1634 2 0% 0 0 0
mail (click) 927451 668535 375 5574 15 0% 0 0 0
psych-load (click) 344027 257642 68 457 1 0% 0 0 0
railsbench (click) 2636955 1927547 1436 9933 16 0% 0 0 0
binarytrees (click) 173467 129779 13 58 0 0% 0 0 0
chunky_png (click) 385563 287206 88 1020 0 0% 0 0 0
erubi (click) 321691 244169 10 79 0 0% 0 0 0
erubi_rails (click) 1942683 1396968 300 1974 4 0% 0 0 0
fannkuchredux (click) 187099 140261 10 188 0 0% 0 0 0
lee (click) 379995 284245 58 623 0 0% 0 0 0
nbody (click) 182427 136651 12 158 0 0% 0 0 0
optcarrot (click) 514395 442558 207 3585 20 0% 0 0 0
rubykon (click) 317659 250491 144 1537 1 0% 0 0 0
30k_ifelse (click) 5562523 4350103 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658236 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171995 128408 10 49 0 0% 0 0 0
fib (click) 169947 127687 10 38 0 0% 0 0 0
getivar (click) 171739 130198 10 65 0 0% 0 0 0
keyword_args (click) 172827 129049 11 51 0 0% 0 0 0
respond_to (click) 173595 129533 10 64 0 0% 0 0 0
setivar (click) 171803 128835 10 38 0 0% 0 0 0
str_concat (click) 171611 129097 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.