YJIT Benchmarks

Details for Benchmarks at 2022-04-14 19:14:24

Overall YJIT is 33.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.5% 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.

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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 183 75 183 20 183
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 47 75 47 20 47
erubi_rails 5 987 75 987 20 987
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 449 75 449 20 449
fib 5 320 75 320 20 320
getivar 5 781 75 781 20 781
keyword_args 5 377 75 377 20 377
respond_to 5 110 75 110 20 110
setivar 5 1912 75 1912 20 1912

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) 993105 814809 185 1185 0 0% 0 0 0
hexapdf (click) 1102225 925135 599 7920 427 5% 0 0 321
liquid-render (click) 502481 424760 143 1535 92 5% 0 0 5
mail (click) 844945 655792 324 4968 96 1% 0 0 111
psych-load (click) 341841 286772 59 434 1 0% 0 0 0
railsbench (click) 2595921 2103047 1297 9354 224 2% 0 0 26
binarytrees (click) 168337 137814 11 59 0 0% 0 0 0
chunky_png (click) 373073 306731 85 857 0 0% 0 0 0
discourse (click) 6251601 5614421 3128 27003 3246 12% 2 0 140
erubi (click) 329873 277421 10 79 0 0% 0 0 0
erubi_rails (click) 1957905 1598069 262 1900 12 0% 0 0 3
fannkuchredux (click) 182161 148821 8 188 0 0% 0 0 0
lee (click) 378513 315736 45 582 68 11% 0 0 13
nbody (click) 179473 146356 10 158 0 0% 0 0 0
optcarrot (click) 505425 451283 198 3575 20 0% 0 0 0
rubykon (click) 311185 259261 140 1536 1 0% 0 0 0
30k_ifelse (click) 5558737 4359150 9263 57804 0 0% 0 0 0
30k_methods (click) 2173137 1667238 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166353 135193 8 50 0 0% 0 0 0
fib (click) 165969 136689 8 38 0 0% 0 0 0
getivar (click) 168465 139574 8 65 0 0% 0 0 0
keyword_args (click) 167761 137393 9 51 0 0% 0 0 0
respond_to (click) 170641 138816 8 65 0 0% 0 0 0
setivar (click) 167441 136210 8 39 0 0% 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.