YJIT Benchmarks

Details for Benchmarks at 2022-11-13 20:10:19

Overall YJIT is 34.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 37.1% 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 YJIT warmups YJIT iters
activerecord 5 208 5 208
hexapdf 5 15 5 15
liquid-render 5 172 5 172
mail 5 124 5 124
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 277 5 277
binarytrees 5 83 5 83
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1117 5 1117
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 21 5 21
nbody 5 234 5 234
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 500 5 500
fib 5 327 5 327
getivar 5 427 5 427
keyword_args 5 385 5 385
respond_to 5 715 5 715
setivar 5 421 5 421
str_concat 5 483 5 483

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) 2320348 2319232 25 352 6 1% 0 0 0
hexapdf (click) 1801312 1801106 819 10287 189 1% 0 0 0
liquid-render (click) 602389 600679 156 1835 34 1% 0 0 0
mail (click) 1348388 1346579 373 5143 176 3% 0 0 0
psych-load (click) 814152 812885 70 636 19 2% 0 0 0
railsbench (click) 5683364 5682442 1779 13947 484 3% 0 0 0
ruby-lsp (click) 5529967 5528540 6425 40494 1523 3% 14054 0 0
binarytrees (click) 135642 133984 16 137 4 2% 0 0 0
chunky_png (click) 821815 820790 89 1178 31 2% 0 0 0
erubi (click) 744857 742395 13 145 4 2% 0 0 0
erubi_rails (click) 4770681 4768828 329 2691 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) 826913 826854 79 803 25 3% 0 0 0
nbody (click) 150291 149244 15 246 6 2% 0 0 0
optcarrot (click) 575956 574916 203 4131 93 2% 0 0 0
rubykon (click) 286082 283685 146 1650 32 1% 0 0 0
30k_ifelse (click) 5427259 5424734 9268 57194 4 0% 0 0 0
30k_methods (click) 2095599 2093105 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) 134328 133128 14 122 4 3% 0 0 0
respond_to (click) 134057 132897 13 136 5 3% 0 0 0
setivar (click) 126843 125587 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.