YJIT Benchmarks

Details for Benchmarks at 2022-02-13 07:11:57

Overall YJIT is 32.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.4% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 172 20 172 75 172 20 172
hexapdf 5 15 20 15 20 15
liquid-render 5 152 20 152 75 152 20 152
mail 5 122 20 122 75 122 20 122
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 75 20 75 75 75 20 75
discourse 5 34 20 34 75 34 20 34
erubi 5 48 20 48 75 48 20 48
erubi_rails 5 956 20 956 75 956 20 956
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 21 20 21 75 21 20 21
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 38 15 20 15
30k_ifelse 5 55 20 55 75 55 20 55
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 449 20 449 75 449 20 449
fib 5 320 20 320 75 320 20 320
getivar 5 769 20 769 75 769 20 769
keyword_args 5 376 20 376 75 376 20 376
respond_to 5 107 20 107 75 107 20 107
setivar 5 1661 20 1661 75 1661 20 1661

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) 999377 766648 185 1196 0 0% 0 0 0
hexapdf (click) 1117777 915805 599 8163 613 7% 0 0 321
liquid-render (click) 491793 390966 143 1531 95 6% 0 0 1
mail (click) 884497 662978 324 5328 125 2% 0 0 39
psych-load (click) 336721 266737 59 434 1 0% 0 0 0
railsbench (click) 2536273 1935124 1297 9352 267 2% 0 0 26
binarytrees (click) 151249 115949 11 59 0 0% 0 0 0
discourse (click) 22653521 11362578 3092 284958 261797 91% 2 0 133
erubi (click) 330449 261910 10 79 0 0% 0 0 0
erubi_rails (click) 1909137 1438233 262 1870 18 0% 0 0 3
fannkuchredux (click) 165521 126976 8 189 0 0% 0 0 0
lee (click) 377617 297705 45 587 69 11% 0 0 12
nbody (click) 160529 123150 10 159 0 0% 0 0 0
optcarrot (click) 487761 428780 198 3576 20 0% 0 0 0
rubykon (click) 293009 236575 141 1532 1 0% 0 0 0
30k_ifelse (click) 5540305 4336273 9263 57805 0 0% 0 0 0
30k_methods (click) 2155473 1644735 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149713 114578 8 50 0 0% 0 0 0
fib (click) 148817 114515 8 39 0 0% 0 0 0
getivar (click) 150033 116697 8 66 0 0% 0 0 0
keyword_args (click) 150609 115219 9 52 0 0% 0 0 0
respond_to (click) 151889 116032 8 65 0 0% 0 0 0
setivar (click) 150033 115221 8 39 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.