YJIT Benchmarks

Details for Benchmarks at 2023-01-14 20:09:52

Overall YJIT is 35.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 37.7% 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 5 179 5 179
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 5 285 5 285
sequel 5 133 5 133
binarytrees 5 81 5 81
chunky_png 5 31 5 31
erubi 5 79 5 79
erubi_rails 5 1155 5 1155
etanni 5 48 5 48
fannkuchredux 5 21 5 21
lee 5 21 5 21
nbody 5 268 5 268
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 21 5 21
cfunc_itself 5 464 5 464
fib 5 325 5 325
getivar 5 436 5 436
keyword_args 5 381 5 381
respond_to 5 709 5 709
setivar 5 1360 5 1360
setivar_object 5 425 5 425
str_concat 5 430 5 430

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) 2276097 2275964 22 337 8 2% 0 0 0
hexapdf (click) 1722439 1721256 820 10434 217 2% 0 0 0
liquid-render (click) 567007 566166 156 1843 32 1% 0 0 0
mail (click) 1248217 1246832 373 4667 176 3% 0 0 0
psych-load (click) 782349 780850 70 651 19 2% 0 0 0
railsbench (click) 5533681 5531102 1779 14318 483 3% 0 0 0
ruby-lsp (click) 5401898 5399550 6428 41822 1537 3% 14354 0 0
sequel (click) 1457522 1457284 17 428 5 1% 0 0 0
binarytrees (click) 96244 93982 16 140 3 2% 0 0 0
chunky_png (click) 803755 803128 89 1190 31 2% 0 0 0
erubi (click) 741732 740028 13 149 4 2% 0 0 0
erubi_rails (click) 4665618 4663210 329 2825 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) 806007 804660 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) 234852 232772 146 1634 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.