YJIT Benchmarks

Details for Benchmarks at 2022-04-05 07:15:10

Overall YJIT is 32.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.0% 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 5 182 75 182 20 182
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
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 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 974 75 974 20 974
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 5 450 75 450 20 450
fib 5 320 75 320 20 320
getivar 5 793 75 793 20 793
keyword_args 5 376 75 376 20 376
respond_to 5 108 75 108 20 108
setivar 5 1894 75 1894 20 1894

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) 988177 809030 185 1184 0 0% 0 0 0
hexapdf (click) 1097425 921325 599 7873 427 5% 0 0 321
liquid-render (click) 504017 425365 143 1539 93 6% 0 0 5
mail (click) 842897 654799 324 4955 96 1% 0 0 111
psych-load (click) 340881 285903 59 434 1 0% 0 0 0
railsbench (click) 2596497 2103102 1297 9361 224 2% 0 0 26
binarytrees (click) 168209 137701 11 59 0 0% 0 0 0
chunky_png (click) 374801 308800 85 857 0 0% 0 0 0
discourse (click) 6231825 5601362 3127 26838 3227 12% 2 0 140
erubi (click) 328721 276372 10 79 0 0% 0 0 0
erubi_rails (click) 1956113 1596662 262 1870 12 0% 0 0 3
fannkuchredux (click) 182161 148821 8 188 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) 506001 451235 198 3576 20 0% 0 0 0
rubykon (click) 308881 257778 140 1522 1 0% 0 0 0
30k_ifelse (click) 5557265 4358025 9263 57805 0 0% 0 0 0
30k_methods (click) 2172625 1666909 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166865 136752 8 49 0 0% 0 0 0
fib (click) 165265 135938 8 39 0 0% 0 0 0
getivar (click) 167185 138871 8 65 0 0% 0 0 0
keyword_args (click) 167569 136971 9 52 0 0% 0 0 0
respond_to (click) 170833 139238 8 64 0 0% 0 0 0
setivar (click) 167185 137395 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.