YJIT Benchmarks

Details for Benchmarks at 2021-11-14 07:10:26

Overall YJIT is 28.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 18.6% 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 MJIT3.0 warmups MJIT3.0 iters YJIT warmups YJIT iters
activerecord 10 127 10 115 10 180
hexapdf 10 10 10 10 10 10
liquid-render 10 103 10 112 10 162
mail 10 116 10 122 10 128
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 43 10 75 10 62
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 11 10 16
nbody 10 168 10 317 10 254
optcarrot 10 10 10 10 10 10
rubykon 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 53
30k_methods 10 10 10 10 10 17
cfunc_itself 10 202 10 326 10 499
fib 10 92 10 320 10 375
getivar 10 219 10 211 10 541
keyword_args 10 77 10 98 10 407
respond_to 10 78 10 93 10 119
setivar 10 294 10 284 10 462

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) 969834 678931 184 1171 0 0% 0 0 0
hexapdf (click) 1081322 808641 596 8002 614 7% 0 0 320
liquid-render (click) 466423 340618 143 1420 95 6% 0 0 1
mail (click) 854634 587854 339 5224 124 2% 0 0 39
psych-load (click) 296481 211233 57 423 1 0% 0 0 0
railsbench (click) 2590050 1799160 1295 9683 264 2% 0 0 26
binarytrees (click) 113253 80608 9 48 0 0% 0 0 0
fannkuchredux (click) 128741 92269 6 202 0 0% 0 0 0
jekyll (click) 1888426 1393297 336 3948 180 4% 0 0 0
lee (click) 345194 239820 44 566 70 12% 0 0 12
nbody (click) 122725 87443 8 148 0 0% 0 0 0
optcarrot (click) 451685 381143 196 3566 20 0% 0 0 0
rubykon (click) 255077 197253 139 1527 1 0% 0 0 0
30k_ifelse (click) 5502501 4300932 9261 57794 0 0% 0 0 0
30k_methods (click) 2117541 1609394 5780 19351 0 0% 0 0 0
cfunc_itself (click) 111909 79237 6 39 0 0% 0 0 0
fib (click) 110373 78845 6 28 0 0% 0 0 0
getivar (click) 111845 81335 6 55 0 0% 0 0 0
keyword_args (click) 112741 79878 7 41 0 0% 0 0 0
respond_to (click) 113765 80550 6 54 0 0% 0 0 0
setivar (click) 112037 79880 6 28 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.