YJIT Benchmarks

Details for Benchmarks at 2022-12-13 20:10:10

Overall YJIT is 43.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 41.6% 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 5 198 5 198
hexapdf 5 15 5 15
liquid-render 5 172 5 172
mail 5 139 5 139
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 266 5 266
binarytrees 5 87 5 87
chunky_png 5 32 5 32
erubi 5 67 5 67
erubi_rails 5 1137 5 1137
etanni 5 42 5 42
fannkuchredux 5 21 5 21
lee 5 22 5 22
nbody 5 278 5 278
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 21 5 21
cfunc_itself 5 493 5 493
fib 5 323 5 323
getivar 5 438 5 438
keyword_args 5 382 5 382
respond_to 5 688 5 688
setivar 5 1359 5 1359
setivar_object 5 436 5 436
str_concat 5 499 5 499

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) 2277562 2276878 25 382 5 1% 0 0 0
hexapdf (click) 1721849 1721092 819 10426 217 2% 0 0 0
liquid-render (click) 565277 565020 156 1849 32 1% 0 0 0
mail (click) 1245071 1244601 373 4657 176 3% 0 0 0
psych-load (click) 779154 778635 70 651 19 2% 0 0 0
railsbench (click) 5536842 5536091 1779 14342 482 3% 0 0 0
ruby-lsp (click) 5405605 5404895 6429 41834 1536 3% 14504 0 0
binarytrees (click) 89042 87085 16 140 3 2% 0 0 0
chunky_png (click) 799793 798240 89 1187 31 2% 0 0 0
erubi (click) 737002 736901 13 149 4 2% 0 0 0
erubi_rails (click) 4662690 4661459 329 2826 111 3% 0 0 0
etanni (click) 144321 142697 13 108 3 2% 0 0 0
fannkuchredux (click) 108481 107857 14 273 3 1% 0 0 0
lee (click) 801695 799747 79 813 24 2% 0 0 0
nbody (click) 101933 100655 15 245 5 2% 0 0 0
optcarrot (click) 536155 534889 203 4439 92 2% 0 0 0
rubykon (click) 229279 229276 146 1644 30 1% 0 0 0
30k_ifelse (click) 5238111 5236197 9268 57200 3 0% 0 0 0
30k_methods (click) 1993486 1992185 5787 19427 3 0% 0 0 0
cfunc_itself (click) 93752 92469 13 123 3 2% 0 0 0
fib (click) 92325 91583 13 112 3 2% 0 0 0
getivar (click) 86900 85302 13 139 3 2% 0 0 0
keyword_args (click) 94538 93277 14 125 3 2% 0 0 0
respond_to (click) 94263 93008 13 139 4 2% 0 0 0
setivar (click) 85935 84659 13 119 3 2% 0 0 0
setivar_object (click) 86270 85018 13 119 3 2% 0 0 0
str_concat (click) 86795 85302 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.