YJIT Benchmarks

Details for Benchmarks at 2021-09-14 07:10:51

Overall YJIT is 21.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 17.7% 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 10 123 10 120 10 163
liquid-render 10 98 10 108 10 126
mail 10 119 10 122 10 122
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 41 10 69 10 55
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 15
nbody 10 167 10 273 10 171
optcarrot 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 49
30k_methods 10 10 10 10 10 18
cfunc_itself 10 202 10 338 10 472
fib 10 91 10 308 10 333
getivar 10 205 10 212 10 528
respond_to 10 77 10 85 10 113
setivar 10 282 10 265 10 433

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) 1068454 824692 185 ? 0 0
liquid-render (click) 439392 358058 144 ? 0 0
mail (click) 904486 699948 337 ? 0 0
psych-load (click) 175538 141010 57 ? 0 0
railsbench (click) 5375738 3086048 1292 ? 0 0
binarytrees (click) 107461 84230 10 ? 0 0
fannkuchredux (click) 107205 84210 7 ? 0 0
jekyll (click) 2369318 1752628 335 ? 0 0
lee (click) 220914 170342 86 ? 1 0
nbody (click) 106053 83696 8 ? 0 0
optcarrot (click) 638405 579446 287 ? 0 0
30k_ifelse (click) 5562373 4770760 9262 ? 0 0
30k_methods (click) 2193029 1874218 5781 ? 0 0
cfunc_itself (click) 106501 83216 7 ? 0 0
fib (click) 104709 82428 7 ? 0 0
getivar (click) 106309 85124 7 ? 0 0
respond_to (click) 108421 84544 7 ? 0 0
setivar (click) 106821 83924 7 ? 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.