YJIT Benchmarks

Details for Benchmarks at 2023-01-05 20:10:10

Overall YJIT is 43.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 39.9% 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.

Want Raw Graphs and CSV?

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 5 212 5 212
hexapdf 5 15 5 15
liquid-render 5 176 5 176
mail 5 141 5 141
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 291 5 291
binarytrees 5 87 5 87
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1162 5 1162
etanni 5 42 5 42
fannkuchredux 5 21 5 21
lee 5 22 5 22
nbody 5 272 5 272
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 21 5 21
cfunc_itself 5 487 5 487
fib 5 318 5 318
getivar 5 435 5 435
keyword_args 5 377 5 377
respond_to 5 701 5 701
setivar 5 1359 5 1359
setivar_object 5 425 5 425
str_concat 5 446 5 446

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) 2275824 2275776 25 395 5 1% 0 0 0
hexapdf (click) 1715432 1714006 819 10428 217 2% 0 0 0
liquid-render (click) 567341 566234 156 1852 32 1% 0 0 0
mail (click) 1242932 1240534 373 4630 176 3% 0 0 0
psych-load (click) 780068 779326 70 651 19 2% 0 0 0
railsbench (click) 5535739 5534816 1779 14397 483 3% 0 0 0
ruby-lsp (click) 5381305 5380310 6428 41662 1537 3% 14854 0 0
binarytrees (click) 96267 94002 16 140 3 2% 0 0 0
chunky_png (click) 801574 799154 89 1187 31 2% 0 0 0
erubi (click) 740177 738976 13 149 4 2% 0 0 0
erubi_rails (click) 4664311 4662426 329 2834 111 3% 0 0 0
etanni (click) 144287 142402 13 108 3 2% 0 0 0
fannkuchredux (click) 108481 107742 14 273 3 1% 0 0 0
lee (click) 804564 803884 79 820 24 2% 0 0 0
nbody (click) 109148 108114 15 245 5 2% 0 0 0
optcarrot (click) 519950 518430 203 4439 92 2% 0 0 0
rubykon (click) 235528 233164 146 1642 30 1% 0 0 0
30k_ifelse (click) 5245212 5242928 9268 57200 3 0% 0 0 0
30k_methods (click) 1993486 1991930 5787 19427 3 0% 0 0 0
cfunc_itself (click) 93752 92274 13 123 3 2% 0 0 0
fib (click) 92325 91458 13 112 3 2% 0 0 0
getivar (click) 94099 92610 13 139 3 2% 0 0 0
keyword_args (click) 91098 90506 14 93 3 3% 0 0 0
respond_to (click) 94263 92758 13 139 4 2% 0 0 0
setivar (click) 93138 91890 13 119 3 2% 0 0 0
setivar_object (click) 93480 92038 13 119 3 2% 0 0 0
str_concat (click) 94011 92590 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.