YJIT Benchmarks

Details for Benchmarks at 2022-12-22 20:09:59

Overall YJIT is 37.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 39.5% 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 5 211 5 211
hexapdf 5 15 5 15
liquid-render 5 180 5 180
mail 5 143 5 143
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 240 5 240
binarytrees 5 86 5 86
chunky_png 5 33 5 33
erubi 5 68 5 68
erubi_rails 5 1149 5 1149
etanni 5 42 5 42
fannkuchredux 5 21 5 21
lee 5 21 5 21
nbody 5 280 5 280
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 492 5 492
fib 5 315 5 315
getivar 5 437 5 437
keyword_args 5 352 5 352
respond_to 5 639 5 639
setivar 5 1360 5 1360
setivar_object 5 395 5 395
str_concat 5 472 5 472

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) 2267204 2264480 25 405 5 1% 0 0 0
hexapdf (click) 1716015 1714270 819 10447 217 2% 0 0 0
liquid-render (click) 565055 564902 156 1849 32 1% 0 0 0
mail (click) 1244482 1244340 373 4658 176 3% 0 0 0
psych-load (click) 779232 778570 70 657 19 2% 0 0 0
railsbench (click) 5527736 5526630 1779 14364 483 3% 0 0 0
ruby-lsp (click) 5376109 5374080 6428 41784 1535 3% 14054 0 0
binarytrees (click) 89042 86620 16 140 3 2% 0 0 0
chunky_png (click) 799863 797870 89 1184 31 2% 0 0 0
erubi (click) 738044 737524 13 149 4 2% 0 0 0
erubi_rails (click) 4661569 4660598 329 2832 111 3% 0 0 0
etanni (click) 143352 141874 13 108 3 2% 0 0 0
fannkuchredux (click) 101246 100076 14 273 3 1% 0 0 0
lee (click) 801863 799262 79 813 24 2% 0 0 0
nbody (click) 101933 100460 15 245 5 2% 0 0 0
optcarrot (click) 512607 510684 203 4439 92 2% 0 0 0
rubykon (click) 227566 225254 146 1632 30 1% 0 0 0
30k_ifelse (click) 5238111 5235722 9268 57200 3 0% 0 0 0
30k_methods (click) 1993486 1991930 5787 19427 3 0% 0 0 0
cfunc_itself (click) 86540 84904 13 123 3 2% 0 0 0
fib (click) 85116 83852 13 112 3 2% 0 0 0
getivar (click) 86900 85012 13 139 3 2% 0 0 0
keyword_args (click) 87327 85404 14 125 3 2% 0 0 0
respond_to (click) 94263 92758 13 139 4 2% 0 0 0
setivar (click) 85935 84424 13 119 3 2% 0 0 0
setivar_object (click) 86270 84748 13 119 3 2% 0 0 0
str_concat (click) 86795 85012 15 138 5 3% 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.