YJIT Benchmarks

Details for Benchmarks at 2022-10-06 20:10:40

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.0% 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 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) 2477969 1541212 23 265 6 2% 0 0 0
hexapdf (click) 1870419 1373660 872 9342 181 1% 0 0 0
liquid-render (click) 748691 517962 154 1661 34 2% 0 0 0
mail (click) 1477267 990710 385 4876 174 3% 0 0 0
psych-load (click) 925267 618427 68 434 18 4% 0 0 0
railsbench (click) 5383761 3441103 1784 12461 470 3% 0 0 0
binarytrees (click) 318163 203226 14 70 4 5% 0 0 0
chunky_png (click) 960275 647555 87 1012 31 3% 0 0 0
erubi (click) 891219 601032 11 76 4 5% 0 0 0
erubi_rails (click) 4480977 2772833 327 2464 104 4% 0 0 0
fannkuchredux (click) 326611 210004 11 200 4 2% 0 0 0
lee (click) 970323 657130 80 744 25 3% 0 0 0
nbody (click) 333587 215643 13 179 6 3% 0 0 0
optcarrot (click) 752787 591545 201 3773 93 2% 0 0 0
rubykon (click) 475219 334064 143 1567 32 2% 0 0 0
30k_ifelse (click) 5620819 4412086 9266 57127 4 0% 0 0 0
30k_methods (click) 2271827 1727826 5785 19356 4 0% 0 0 0
cfunc_itself (click) 315603 201078 11 53 4 7% 0 0 0
fib (click) 314643 201090 11 42 4 9% 0 0 0
getivar (click) 316499 203283 11 69 4 5% 0 0 0
keyword_args (click) 316499 201832 12 55 4 7% 0 0 0
respond_to (click) 314963 201513 11 55 5 9% 0 0 0
setivar (click) 316371 201903 11 42 4 9% 0 0 0
str_concat (click) 311699 199299 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.