YJIT Benchmarks

Details for Benchmarks at 2022-03-25 07:13:04

Overall YJIT is 31.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.7% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 177 75 177 20 177
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 62 75 62 20 62
chunky_png 5 30 75 30 20 30
discourse 5 39 75 39 20 39
erubi 5 46 75 46 20 46
erubi_rails 5 966 75 966 20 966
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 23 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 442 75 442 20 442
fib 5 320 75 320 20 320
getivar 5 793 75 793 20 793
keyword_args 5 369 75 369 20 369
respond_to 5 106 75 106 20 106
setivar 5 1800 75 1800 20 1800

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) 992913 813929 185 1185 0 0% 0 0 0
hexapdf (click) 1098833 922316 599 7886 429 5% 0 0 321
liquid-render (click) 498257 421042 143 1475 92 6% 0 0 5
mail (click) 851857 660262 324 5024 96 1% 0 0 111
psych-load (click) 341905 286802 59 439 1 0% 0 0 0
railsbench (click) 2595665 2102766 1297 9363 224 2% 0 0 26
binarytrees (click) 169745 138826 11 58 0 0% 0 0 0
chunky_png (click) 374097 307956 85 857 0 0% 0 0 0
discourse (click) 6187089 5561731 3088 26400 3116 11% 2 0 140
erubi (click) 329041 276794 10 79 0 0% 0 0 0
erubi_rails (click) 1955601 1596246 262 1871 12 0% 0 0 3
fannkuchredux (click) 183633 149637 8 188 0 0% 0 0 0
lee (click) 379217 316245 45 582 68 11% 0 0 13
nbody (click) 179153 146140 10 158 0 0% 0 0 0
optcarrot (click) 506321 451770 198 3575 20 0% 0 0 0
rubykon (click) 309585 258024 140 1518 1 0% 0 0 0
30k_ifelse (click) 5558801 4359150 9263 57804 0 0% 0 0 0
30k_methods (click) 2173969 1667612 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166865 136752 8 49 0 0% 0 0 0
fib (click) 166865 137176 8 38 0 0% 0 0 0
getivar (click) 168529 139574 8 65 0 0% 0 0 0
keyword_args (click) 169105 138096 9 51 0 0% 0 0 0
respond_to (click) 170385 138909 8 64 0 0% 0 0 0
setivar (click) 168529 138098 8 38 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.