YJIT Benchmarks

Details for Benchmarks at 2022-08-22 20:13:59

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.1% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 160 75 160 20 160
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1009 75 1009 20 1009
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 55 68 55 20 55
30k_methods 5 23 22 23 20 23
cfunc_itself 5 431 75 431 20 431
fib 5 315 75 315 20 315
getivar 5 612 75 612 20 612
keyword_args 5 362 75 362 20 362
respond_to 5 108 75 108 20 108
setivar 5 980 75 980 20 980
str_concat 5 425 75 425 20 425

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) 1039515 782080 131 1293 0 0% 0 0 0
hexapdf (click) 1149659 923789 682 8013 9 0% 0 0 0
liquid-render (click) 517275 402605 150 1708 2 0% 0 0 0
mail (click) 907867 655021 374 5408 17 0% 0 0 0
psych-load (click) 346907 263030 68 480 1 0% 0 0 0
railsbench (click) 2652955 1964740 1436 10000 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 392027 292843 88 1037 0 0% 0 0 0
erubi (click) 331355 252407 10 79 0 0% 0 0 0
erubi_rails (click) 1964379 1430539 300 2037 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 386267 291678 58 632 0 0% 0 0 0
nbody (click) 181723 136946 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320603 257045 144 1581 2 0% 0 0 0
30k_ifelse (click) 5560155 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 168091 126132 10 38 0 0% 0 0 0
getivar (click) 169691 128169 10 65 0 0% 0 0 0
keyword_args (click) 170395 127165 11 51 0 0% 0 0 0
respond_to (click) 171611 127928 10 64 0 0% 0 0 0
setivar (click) 169755 127039 10 38 0 0% 0 0 0
str_concat (click) 169755 127371 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.