YJIT Benchmarks

Details for Benchmarks at 2022-07-05 20:15:11

Overall YJIT is 36.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.2% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 30 75 30 20 30
erubi 5 52 75 52 20 52
erubi_rails 5 985 75 985 20 985
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 34 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 419 75 419 20 419
fib 5 315 75 315 20 315
getivar 5 759 75 759 20 759
keyword_args 5 379 75 379 20 379
respond_to 5 109 75 109 20 109
setivar 5 1851 75 1851 20 1851
str_concat 5 380 75 380 20 380

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) 1027611 763792 131 1240 0 0% 0 0 0
hexapdf (click) 1123419 881661 682 7757 9 0% 0 0 0
liquid-render (click) 512027 392976 150 1645 2 0% 0 0 0
mail (click) 945947 681287 375 5758 15 0% 0 0 0
psych-load (click) 343835 257574 68 457 1 0% 0 0 0
railsbench (click) 2637147 1927666 1436 9924 16 0% 0 0 0
binarytrees (click) 172955 129450 13 58 0 0% 0 0 0
chunky_png (click) 388507 288797 88 1032 0 0% 0 0 0
erubi (click) 321691 244144 10 79 0 0% 0 0 0
erubi_rails (click) 1942043 1396598 300 1971 4 0% 0 0 0
fannkuchredux (click) 186459 139852 10 188 0 0% 0 0 0
lee (click) 383643 287216 58 623 0 0% 0 0 0
nbody (click) 182555 136764 12 158 0 0% 0 0 0
optcarrot (click) 514011 442375 207 3585 20 0% 0 0 0
rubykon (click) 317595 250303 144 1528 1 0% 0 0 0
30k_ifelse (click) 5562011 4349774 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658236 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128079 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) 172315 128720 11 51 0 0% 0 0 0
respond_to (click) 174107 129862 10 64 0 0% 0 0 0
setivar (click) 171675 128722 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.