YJIT Benchmarks

Details for Benchmarks at 2022-11-05 20:10:50

Overall YJIT is 33.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.8% 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 5 204 5 204
hexapdf 5 15 5 15
liquid-render 5 175 5 175
mail 5 125 5 125
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 247 5 247
binarytrees 5 83 5 83
chunky_png 5 32 5 32
erubi 5 68 5 68
erubi_rails 5 1082 5 1082
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 243 5 243
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 21 5 21
cfunc_itself 5 469 5 469
fib 5 327 5 327
getivar 5 426 5 426
keyword_args 5 386 5 386
respond_to 5 710 5 710
setivar 5 400 5 400
str_concat 5 481 5 481

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) 2334009 2333710 23 377 6 1% 0 0 0
hexapdf (click) 1785629 1785171 817 10171 189 1% 0 0 0
liquid-render (click) 555541 552754 154 1792 34 1% 0 0 0
mail (click) 1333655 1331023 371 5125 176 3% 0 0 0
psych-load (click) 809199 807317 68 584 19 3% 0 0 0
railsbench (click) 5671215 5669231 1777 13905 483 3% 0 0 0
ruby-lsp (click) 5616590 5616121 6423 41543 1520 3% 12604 0 0
binarytrees (click) 122941 122858 14 89 4 4% 0 0 0
chunky_png (click) 824939 822764 87 1132 31 2% 0 0 0
erubi (click) 752544 750828 11 97 4 4% 0 0 0
erubi_rails (click) 4754246 4752261 327 2618 111 4% 0 0 0
etanni (click) 131016 130976 11 57 4 7% 0 0 0
fannkuchredux (click) 134964 133405 11 219 4 1% 0 0 0
lee (click) 820074 819557 77 759 25 3% 0 0 0
nbody (click) 137584 135729 13 198 6 3% 0 0 0
optcarrot (click) 564934 564902 201 4024 93 2% 0 0 0
rubykon (click) 280084 279517 143 1586 31 1% 0 0 0
30k_ifelse (click) 5421825 5420885 9266 57146 4 0% 0 0 0
30k_methods (click) 2090341 2089183 5785 19375 4 0% 0 0 0
cfunc_itself (click) 128330 126281 11 72 4 5% 0 0 0
fib (click) 126876 125394 11 61 4 6% 0 0 0
getivar (click) 128947 127370 11 88 4 4% 0 0 0
keyword_args (click) 129123 126792 12 74 4 5% 0 0 0
respond_to (click) 128850 126884 11 88 5 5% 0 0 0
setivar (click) 121625 118635 11 61 4 6% 0 0 0
str_concat (click) 121070 119301 13 87 6 6% 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.