YJIT Benchmarks

Details for Benchmarks at 2022-11-25 20:10:11

Overall YJIT is 34.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 38.7% 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 5 208 5 208
hexapdf 5 15 5 15
liquid-render 5 155 5 155
mail 5 125 5 125
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 277 5 277
binarytrees 5 84 5 84
chunky_png 5 32 5 32
erubi 5 69 5 69
erubi_rails 5 1116 5 1116
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 250 5 250
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 491 5 491
fib 5 326 5 326
getivar 5 426 5 426
keyword_args 5 383 5 383
respond_to 5 622 5 622
setivar 5 418 5 418
str_concat 5 501 5 501

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) 2273482 2271910 25 373 6 1% 0 0 0
hexapdf (click) 1716130 1714660 819 9848 218 2% 0 0 0
liquid-render (click) 549802 549293 156 1810 34 1% 0 0 0
mail (click) 1318181 1318014 373 5137 176 3% 0 0 0
psych-load (click) 793394 791420 70 607 19 3% 0 0 0
railsbench (click) 5560360 5559489 1779 13743 484 3% 0 0 0
ruby-lsp (click) 5366946 5365518 6428 40263 1522 3% 14004 0 0
binarytrees (click) 134249 133123 16 139 4 2% 0 0 0
chunky_png (click) 808579 806802 89 1164 31 2% 0 0 0
erubi (click) 737639 737305 13 147 4 2% 0 0 0
erubi_rails (click) 4691364 4691060 329 2671 111 4% 0 0 0
etanni (click) 134966 133712 13 107 4 3% 0 0 0
fannkuchredux (click) 146204 144254 13 269 4 1% 0 0 0
lee (click) 803028 802675 79 804 25 3% 0 0 0
nbody (click) 146981 144656 15 235 6 2% 0 0 0
optcarrot (click) 550605 549816 203 4071 93 2% 0 0 0
rubykon (click) 277841 275559 146 1613 31 1% 0 0 0
30k_ifelse (click) 5403660 5403205 9268 57196 4 0% 0 0 0
30k_methods (click) 2094140 2092213 5787 19425 4 0% 0 0 0
cfunc_itself (click) 132151 131614 13 122 4 3% 0 0 0
fib (click) 130680 128334 13 111 4 3% 0 0 0
getivar (click) 132501 132071 13 138 4 2% 0 0 0
keyword_args (click) 132937 132262 14 124 4 3% 0 0 0
respond_to (click) 132616 132071 13 138 5 3% 0 0 0
setivar (click) 132926 132262 13 111 4 3% 0 0 0
str_concat (click) 132402 131875 15 137 6 4% 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.