YJIT Benchmarks

Details for Benchmarks at 2023-01-07 20:09:50

Overall YJIT is 42.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.4% 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 5 212 5 212
hexapdf 5 15 5 15
liquid-render 5 179 5 179
mail 5 140 5 140
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 293 5 293
binarytrees 5 86 5 86
chunky_png 5 33 5 33
erubi 5 67 5 67
erubi_rails 5 1148 5 1148
etanni 5 42 5 42
fannkuchredux 5 21 5 21
lee 5 22 5 22
nbody 5 279 5 279
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 49 5 49
30k_methods 5 20 5 20
cfunc_itself 5 496 5 496
fib 5 318 5 318
getivar 5 437 5 437
keyword_args 5 378 5 378
respond_to 5 712 5 712
setivar 5 1359 5 1359
setivar_object 5 425 5 425
str_concat 5 497 5 497

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) 2269469 2268582 25 405 5 1% 0 0 0
hexapdf (click) 1715450 1714006 820 10433 217 2% 0 0 0
liquid-render (click) 567476 566450 156 1847 32 1% 0 0 0
mail (click) 1245663 1245172 373 4657 176 3% 0 0 0
psych-load (click) 780813 779758 70 651 19 2% 0 0 0
railsbench (click) 5535427 5534796 1779 14389 483 3% 0 0 0
ruby-lsp (click) 5376994 5374728 6428 41610 1537 3% 14704 0 0
binarytrees (click) 96267 94002 16 140 3 2% 0 0 0
chunky_png (click) 805404 804316 89 1229 31 2% 0 0 0
erubi (click) 739800 738680 13 149 4 2% 0 0 0
erubi_rails (click) 4661631 4660598 329 2824 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) 804290 803708 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) 235968 233724 147 1644 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.