YJIT Benchmarks

Details for Benchmarks at 2022-11-29 04:10:30

Overall YJIT is 32.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.5% 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 5 153 5 153
mail 5 123 5 123
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 30 5 30
erubi 5 70 5 70
erubi_rails 5 1138 5 1138
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 254 5 254
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 477 5 477
fib 5 331 5 331
getivar 5 425 5 425
keyword_args 5 384 5 384
respond_to 5 707 5 707
setivar 5 410 5 410
str_concat 5 433 5 433

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) 2279736 2278543 25 359 6 1% 0 0 0
hexapdf (click) 1700267 1698750 819 9827 218 2% 0 0 0
liquid-render (click) 577981 576304 156 1811 34 1% 0 0 0
mail (click) 1305617 1304431 373 5128 176 3% 0 0 0
psych-load (click) 793353 791420 70 607 19 3% 0 0 0
railsbench (click) 5572271 5570942 1779 13776 483 3% 0 0 0
ruby-lsp (click) 5355494 5355040 6428 40226 1525 3% 14104 0 0
binarytrees (click) 127168 125863 16 139 4 2% 0 0 0
chunky_png (click) 802409 802296 89 1169 31 2% 0 0 0
erubi (click) 726213 724616 13 147 4 2% 0 0 0
erubi_rails (click) 4696396 4695040 329 2676 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) 804562 803936 79 804 25 3% 0 0 0
nbody (click) 146981 144656 15 235 6 2% 0 0 0
optcarrot (click) 549197 548791 203 4071 93 2% 0 0 0
rubykon (click) 268969 267044 146 1603 32 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) 132447 132046 13 122 4 3% 0 0 0
fib (click) 123311 123069 13 111 4 3% 0 0 0
getivar (click) 125418 124513 13 138 4 2% 0 0 0
keyword_args (click) 125560 124538 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.