YJIT Benchmarks

Details for Benchmarks at 2022-04-18 07:14:11

Overall YJIT is 31.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.8% 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 5 181 75 181 20 181
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 30 75 30 20 30
discourse 5 34 75 34 20 34
erubi 5 48 75 48 20 48
erubi_rails 5 982 75 982 20 982
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 28 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 438 75 438 20 438
fib 5 320 75 320 20 320
getivar 5 788 75 788 20 788
keyword_args 5 375 75 375 20 375
respond_to 5 111 75 111 20 111
setivar 5 1886 75 1886 20 1886

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) 992977 814537 185 1185 0 0% 0 0 0
hexapdf (click) 1098513 922116 600 7893 429 5% 0 0 321
liquid-render (click) 499921 422394 143 1492 92 6% 0 0 5
mail (click) 882705 681240 325 5320 96 1% 0 0 111
psych-load (click) 341329 286443 59 434 1 0% 0 0 0
railsbench (click) 2597777 2102959 1297 9363 224 2% 0 0 26
binarytrees (click) 170001 138733 11 59 0 0% 0 0 0
chunky_png (click) 375953 309672 85 865 0 0% 0 0 0
discourse (click) 6277457 5632976 3141 27233 3256 11% 2 0 140
erubi (click) 329041 276397 10 79 0 0% 0 0 0
erubi_rails (click) 1958673 1597096 262 1896 12 0% 0 0 3
fannkuchredux (click) 183249 149102 8 189 0 0% 0 0 0
lee (click) 378513 315736 45 582 68 11% 0 0 13
nbody (click) 177681 145324 10 158 0 0% 0 0 0
optcarrot (click) 506193 451657 198 3575 20 0% 0 0 0
rubykon (click) 310801 259219 140 1535 2 0% 0 0 0
30k_ifelse (click) 5558737 4359150 9263 57804 0 0% 0 0 0
30k_methods (click) 2173137 1667238 5782 19361 0 0% 0 0 0
cfunc_itself (click) 168145 137455 8 49 0 0% 0 0 0
fib (click) 165265 135938 8 39 0 0% 0 0 0
getivar (click) 167505 138778 8 66 0 0% 0 0 0
keyword_args (click) 167761 137393 9 51 0 0% 0 0 0
respond_to (click) 170129 138487 8 65 0 0% 0 0 0
setivar (click) 167697 137724 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.