YJIT Benchmarks

Details for Benchmarks at 2022-04-17 07:14:17

Overall YJIT is 32.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.2% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 180 75 180 20 180
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 48 75 48 20 48
erubi_rails 5 969 75 969 20 969
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 437 75 437 20 437
fib 5 318 75 318 20 318
getivar 5 785 75 785 20 785
keyword_args 5 375 75 375 20 375
respond_to 5 109 75 109 20 109
setivar 5 1814 75 1814 20 1814

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) 991505 813320 185 1185 0 0% 0 0 0
hexapdf (click) 1097297 921165 599 7872 427 5% 0 0 321
liquid-render (click) 500817 422489 143 1500 93 6% 0 0 5
mail (click) 845969 656549 324 4972 96 1% 0 0 111
psych-load (click) 341841 286772 59 434 1 0% 0 0 0
railsbench (click) 2597137 2103850 1297 9367 224 2% 0 0 26
binarytrees (click) 169681 138826 11 58 0 0% 0 0 0
chunky_png (click) 376465 309959 85 865 0 0% 0 0 0
discourse (click) 6244817 5610088 3127 26951 3237 12% 2 0 140
erubi (click) 329553 277196 10 79 0 0% 0 0 0
erubi_rails (click) 1956945 1597198 262 1887 12 0% 0 0 3
fannkuchredux (click) 183249 149102 8 189 0 0% 0 0 0
lee (click) 378513 315736 45 582 68 11% 0 0 13
nbody (click) 178961 146027 10 158 0 0% 0 0 0
optcarrot (click) 505425 451283 198 3575 20 0% 0 0 0
rubykon (click) 308689 257503 140 1512 1 0% 0 0 0
30k_ifelse (click) 5557457 4358447 9263 57804 0 0% 0 0 0
30k_methods (click) 2172625 1666909 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166865 136752 8 49 0 0% 0 0 0
fib (click) 165457 136360 8 38 0 0% 0 0 0
getivar (click) 167697 139200 8 65 0 0% 0 0 0
keyword_args (click) 167761 137393 9 51 0 0% 0 0 0
respond_to (click) 170321 138909 8 64 0 0% 0 0 0
setivar (click) 167697 137724 8 38 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.