YJIT Benchmarks

Details for Benchmarks at 2022-10-09 20:10:36

Overall YJIT is 35.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.2% 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 YJIT warmups YJIT iters
activerecord 5 192 5 192
hexapdf 5 15 5 15
liquid-render 5 175 5 175
mail 5 129 5 129
psych-load 5 15 5 15
railsbench 5 15 5 15
binarytrees 5 84 5 84
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1014 5 1014
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 217 5 217
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 57 5 57
30k_methods 5 24 5 24
cfunc_itself 5 456 5 456
fib 5 324 5 324
getivar 5 467 5 467
keyword_args 5 372 5 372
respond_to 5 668 5 668
setivar 5 420 5 420
str_concat 5 469 5 469

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) 2474385 1539317 23 265 6 2% 0 0 0
hexapdf (click) 1887763 1385117 872 9351 181 1% 0 0 0
liquid-render (click) 739923 512062 154 1660 34 2% 0 0 0
mail (click) 1475155 988783 384 4850 174 3% 0 0 0
psych-load (click) 937747 626826 68 435 18 4% 0 0 0
railsbench (click) 5385425 3442723 1784 12428 470 3% 0 0 0
binarytrees (click) 317715 202966 14 70 4 5% 0 0 0
chunky_png (click) 943123 636326 87 1013 31 3% 0 0 0
erubi (click) 889811 600266 11 76 4 5% 0 0 0
erubi_rails (click) 4478865 2771854 327 2453 104 4% 0 0 0
fannkuchredux (click) 330323 212372 11 200 4 2% 0 0 0
lee (click) 974995 660220 80 744 25 3% 0 0 0
nbody (click) 328979 212755 13 179 6 3% 0 0 0
optcarrot (click) 752339 591285 201 3773 93 2% 0 0 0
rubykon (click) 470675 331506 144 1571 32 2% 0 0 0
30k_ifelse (click) 5620371 4411826 9266 57127 4 0% 0 0 0
30k_methods (click) 2271379 1727566 5785 19356 4 0% 0 0 0
cfunc_itself (click) 310995 198190 11 53 4 7% 0 0 0
fib (click) 310227 198318 11 42 4 9% 0 0 0
getivar (click) 316243 203139 11 69 4 5% 0 0 0
keyword_args (click) 316115 201575 12 55 4 7% 0 0 0
respond_to (click) 310355 198625 11 55 5 9% 0 0 0
setivar (click) 311507 198842 11 42 4 9% 0 0 0
str_concat (click) 311955 199484 13 68 6 8% 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.