YJIT Benchmarks

Details for Benchmarks at 2022-11-03 20:10:03

Overall YJIT is 32.7% 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 5 205 5 205
hexapdf 5 15 5 15
liquid-render 5 177 5 177
mail 5 125 5 125
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 250 5 250
binarytrees 5 83 5 83
chunky_png 5 32 5 32
erubi 5 68 5 68
erubi_rails 5 1057 5 1057
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 247 5 247
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 470 5 470
fib 5 331 5 331
getivar 5 426 5 426
keyword_args 5 386 5 386
respond_to 5 705 5 705
setivar 5 424 5 424
str_concat 5 462 5 462

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) 2329625 2327978 23 317 6 1% 0 0 0
hexapdf (click) 1786535 1785942 818 10167 189 1% 0 0 0
liquid-render (click) 596500 593768 154 1795 34 1% 0 0 0
mail (click) 1342288 1339661 371 5099 176 3% 0 0 0
psych-load (click) 809831 807774 68 584 19 3% 0 0 0
railsbench (click) 5664818 5664785 1777 13848 483 3% 0 0 0
ruby-lsp (click) 5631312 5628965 6423 41648 1520 3% 12604 0 0
binarytrees (click) 122941 122858 14 89 4 4% 0 0 0
chunky_png (click) 825622 823105 87 1133 31 2% 0 0 0
erubi (click) 748927 747443 11 97 4 4% 0 0 0
erubi_rails (click) 4759781 4758749 327 2632 111 4% 0 0 0
etanni (click) 131305 131162 11 57 4 7% 0 0 0
fannkuchredux (click) 142459 141267 11 219 4 1% 0 0 0
lee (click) 832883 831021 77 759 25 3% 0 0 0
nbody (click) 145092 143430 13 198 6 3% 0 0 0
optcarrot (click) 564934 564902 201 4024 93 2% 0 0 0
rubykon (click) 279928 279424 143 1589 32 2% 0 0 0
30k_ifelse (click) 5414509 5413169 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) 129114 126821 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.