YJIT Benchmarks

Details for Benchmarks at 2022-11-29 20:10:19

Overall YJIT is 34.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 37.5% 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) 2243981 2243664 25 336 6 1% 0 0 0
hexapdf (click) 1689837 1688842 819 9844 218 2% 0 0 0
liquid-render (click) 574942 574306 156 1809 34 1% 0 0 0
mail (click) 1292384 1290648 373 5071 176 3% 0 0 0
psych-load (click) 771996 771350 70 608 19 3% 0 0 0
railsbench (click) 5483919 5482194 1779 13744 483 3% 0 0 0
ruby-lsp (click) 5289457 5289098 6427 40237 1522 3% 14104 0 0
binarytrees (click) 132072 131614 16 139 4 2% 0 0 0
chunky_png (click) 790833 789494 89 1162 31 2% 0 0 0
erubi (click) 729095 728833 13 147 4 2% 0 0 0
erubi_rails (click) 4630721 4629389 329 2686 111 4% 0 0 0
etanni (click) 131002 130976 13 107 4 3% 0 0 0
fannkuchredux (click) 143978 142446 13 269 4 1% 0 0 0
lee (click) 805926 804917 79 804 25 3% 0 0 0
nbody (click) 144612 142983 15 235 6 2% 0 0 0
optcarrot (click) 534076 533444 203 4071 93 2% 0 0 0
rubykon (click) 263170 262758 146 1581 32 2% 0 0 0
30k_ifelse (click) 5281265 5280801 9268 57196 4 0% 0 0 0
30k_methods (click) 2022020 2022010 5787 19425 4 0% 0 0 0
cfunc_itself (click) 130269 128068 13 122 4 3% 0 0 0
fib (click) 121327 119553 13 111 4 3% 0 0 0
getivar (click) 123446 123119 13 138 4 2% 0 0 0
keyword_args (click) 130761 128452 14 124 4 3% 0 0 0
respond_to (click) 123270 123069 13 138 5 3% 0 0 0
setivar (click) 123863 123428 13 111 4 3% 0 0 0
str_concat (click) 130236 128068 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.