YJIT Benchmarks

Details for Benchmarks at 2021-09-12 07:09:36

Overall YJIT is 18.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 10.6% 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 10 124 10 117 10 168
liquid-render 10 95 10 110 10 119
mail 10 120 10 121 10 132
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 42 10 69 10 56
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 16
nbody 10 165 10 273 10 168
optcarrot 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 51
30k_methods 10 10 10 10 10 18
cfunc_itself 10 211 10 338 10 475
fib 10 91 10 308 10 333
getivar 10 196 10 211 10 528
respond_to 10 80 10 91 10 121
setivar 10 271 10 265 10 463

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) 1051494 808578 185 ? 0 0
liquid-render (click) 413152 332834 144 ? 0 0
mail (click) 764070 604064 337 ? 0 0
psych-load (click) 169010 133206 57 ? 0 0
railsbench (click) 5307130 3027998 1293 ? 0 0
binarytrees (click) 106117 82762 10 ? 0 0
fannkuchredux (click) 106245 82940 7 ? 0 0
jekyll (click) 2293286 1682656 335 ? 0 0
lee (click) 216434 166338 86 ? 1 0
nbody (click) 104773 82038 8 ? 0 0
optcarrot (click) 634181 575428 287 ? 0 0
30k_ifelse (click) 5561221 4769190 9262 ? 0 0
30k_methods (click) 2191237 1872204 5781 ? 0 0
cfunc_itself (click) 105221 81558 7 ? 0 0
fib (click) 103621 81058 7 ? 0 0
getivar (click) 105285 83854 7 ? 0 0
respond_to (click) 107013 82786 7 ? 0 0
setivar (click) 105157 82010 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.