YJIT Benchmarks

Details for Benchmarks at 2023-01-12 20:10:40

Overall YJIT is 37.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 40.4% 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.

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 5 175 5 175
hexapdf 5 15 5 15
liquid-render 5 180 5 180
mail 5 140 5 140
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 258 5 258
sequel 5 133 5 133
binarytrees 5 83 5 83
chunky_png 5 32 5 32
erubi 5 66 5 66
erubi_rails 5 1150 5 1150
etanni 5 42 5 42
fannkuchredux 5 21 5 21
lee 5 19 5 19
nbody 5 281 5 281
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 469 5 469
fib 5 325 5 325
getivar 5 436 5 436
keyword_args 5 385 5 385
respond_to 5 708 5 708
setivar 5 1359 5 1359
setivar_object 5 425 5 425
str_concat 5 459 5 459

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) 2280861 2278984 22 377 8 2% 0 0 0
hexapdf (click) 1717025 1714966 820 10424 217 2% 0 0 0
liquid-render (click) 567228 566234 156 1843 32 1% 0 0 0
mail (click) 1248115 1246684 373 4669 176 3% 0 0 0
psych-load (click) 781963 780606 70 651 19 2% 0 0 0
railsbench (click) 5541859 5539288 1779 14396 482 3% 0 0 0
ruby-lsp (click) 5393003 5390736 6428 41756 1536 3% 14504 0 0
sequel (click) 1455103 1453034 17 428 5 1% 0 0 0
binarytrees (click) 96244 93982 16 140 3 2% 0 0 0
chunky_png (click) 802861 802532 89 1181 31 2% 0 0 0
erubi (click) 741419 739920 13 149 4 2% 0 0 0
erubi_rails (click) 4668160 4667080 329 2830 111 3% 0 0 0
etanni (click) 144397 142490 13 108 3 2% 0 0 0
fannkuchredux (click) 107885 107242 14 273 3 1% 0 0 0
lee (click) 806603 805164 79 820 24 2% 0 0 0
nbody (click) 109125 108094 15 245 5 2% 0 0 0
optcarrot (click) 520808 518938 203 4449 92 2% 0 0 0
rubykon (click) 235470 233144 146 1638 30 1% 0 0 0
30k_ifelse (click) 5245189 5242908 9268 57200 3 0% 0 0 0
30k_methods (click) 1993463 1991910 5787 19427 3 0% 0 0 0
cfunc_itself (click) 93744 92254 13 123 3 2% 0 0 0
fib (click) 92325 91458 13 112 3 2% 0 0 0
getivar (click) 94088 92590 13 139 3 2% 0 0 0
keyword_args (click) 94528 92982 14 125 3 2% 0 0 0
respond_to (click) 94250 92738 13 139 4 2% 0 0 0
setivar (click) 93125 91870 13 119 3 2% 0 0 0
setivar_object (click) 93457 92018 13 119 3 2% 0 0 0
str_concat (click) 93983 92570 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.