YJIT Benchmarks

Details for Benchmarks at 2021-10-14 07:09:49

Overall YJIT is 27.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 21.2% 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 MJIT3.0 warmups MJIT3.0 iters YJIT warmups YJIT iters
activerecord 10 131 10 122 10 175
hexapdf 10 10 10 10 10 10
liquid-render 10 105 10 114 10 150
mail 10 119 10 124 10 134
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 44 10 66 10 59
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 16
nbody 10 173 10 332 10 256
optcarrot 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 53
30k_methods 10 10 10 10 10 17
cfunc_itself 10 215 10 339 10 499
fib 10 94 10 306 10 375
getivar 10 220 10 212 10 529
keyword_args 10 76 10 97 10 427
respond_to 10 78 10 88 10 107
setivar 10 273 10 264 10 458

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) 1111770 866164 185 1151 0 0% 0 0 0
hexapdf (click) 975425 816365 602 7879 675 8% 0 0 320
liquid-render (click) 458644 375143 143 1286 94 7% 0 0 1
mail (click) 972250 750864 337 5024 129 2% 0 0 39
psych-load (click) 185066 149179 56 409 1 0% 0 0 0
railsbench (click) 2555633 1992080 1293 9489 262 2% 0 0 26
binarytrees (click) 113853 90204 9 49 0 0% 0 0 0
fannkuchredux (click) 129597 103451 6 203 0 0% 0 0 0
jekyll (click) 1961754 1631210 336 3723 174 4% 0 0 0
lee (click) 235306 181797 85 1091 114 10% 1 0 13
nbody (click) 122941 97556 8 149 0 0% 0 0 0
optcarrot (click) 459453 429726 196 3567 20 0% 0 0 0
30k_ifelse (click) 5561469 4891133 9261 57795 0 0% 0 0 0
30k_methods (click) 2117693 1816572 5780 19352 0 0% 0 0 0
cfunc_itself (click) 112317 88643 6 40 0 0% 0 0 0
fib (click) 110333 87970 6 29 0 0% 0 0 0
getivar (click) 112253 90679 6 56 0 0% 0 0 0
keyword_args (click) 113149 89399 7 42 0 0% 0 0 0
respond_to (click) 114557 90187 6 55 0 0% 0 0 0
setivar (click) 112573 89366 6 29 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.