YJIT Benchmarks

Details for Benchmarks at 2022-11-15 04:11:13

Overall YJIT is 33.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.3% 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 5 199 5 199
hexapdf 5 15 5 15
liquid-render 5 176 5 176
mail 5 124 5 124
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 240 5 240
binarytrees 5 84 5 84
chunky_png 5 32 5 32
erubi 5 69 5 69
erubi_rails 5 1118 5 1118
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 21 5 21
nbody 5 228 5 228
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 472 5 472
fib 5 327 5 327
getivar 5 426 5 426
keyword_args 5 379 5 379
respond_to 5 702 5 702
setivar 5 407 5 407
str_concat 5 453 5 453

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) 2332923 2330433 25 372 6 1% 0 0 0
hexapdf (click) 1802235 1801659 820 10291 189 1% 0 0 0
liquid-render (click) 598213 597907 156 1843 34 1% 0 0 0
mail (click) 1334976 1334647 373 5134 176 3% 0 0 0
psych-load (click) 813653 812604 70 637 19 2% 0 0 0
railsbench (click) 5679064 5677230 1779 13899 485 3% 0 0 0
ruby-lsp (click) 5527977 5527278 6425 40467 1521 3% 12254 0 0
binarytrees (click) 135642 133984 16 137 4 2% 0 0 0
chunky_png (click) 836644 836170 89 1187 31 2% 0 0 0
erubi (click) 757776 756321 13 145 4 2% 0 0 0
erubi_rails (click) 4768883 4767548 329 2693 111 4% 0 0 0
etanni (click) 136490 134687 13 105 4 3% 0 0 0
fannkuchredux (click) 147681 147534 13 267 4 1% 0 0 0
lee (click) 838162 837019 79 803 25 3% 0 0 0
nbody (click) 150291 149244 15 246 6 2% 0 0 0
optcarrot (click) 568459 567199 203 4131 93 2% 0 0 0
rubykon (click) 286066 283685 146 1645 32 1% 0 0 0
30k_ifelse (click) 5427259 5424734 9268 57194 4 0% 0 0 0
30k_methods (click) 2088065 2087759 5787 19423 4 0% 0 0 0
cfunc_itself (click) 133540 132561 13 120 4 3% 0 0 0
fib (click) 132078 131639 13 109 4 3% 0 0 0
getivar (click) 134164 132897 13 136 4 2% 0 0 0
keyword_args (click) 126854 125587 14 122 4 3% 0 0 0
respond_to (click) 126571 125318 13 136 5 3% 0 0 0
setivar (click) 134318 133128 13 109 4 3% 0 0 0
str_concat (click) 133784 132729 15 135 6 4% 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.