YJIT Benchmarks

Details for Benchmarks at 2022-04-21 07:12:47

Overall YJIT is 30.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.9% 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 5 158 75 158 20 158
mail 5 122 75 122 20 122
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 30 75 30 20 30
discourse 5 35 75 35 20 35
erubi 5 47 75 47 20 47
erubi_rails 5 972 75 972 20 972
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 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 5 319 75 319 20 319
getivar 5 781 75 781 20 781
keyword_args 5 378 75 378 20 378
respond_to 5 110 75 110 20 110
setivar 5 1900 75 1900 20 1900

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) 993425 815018 185 1185 0 0% 0 0 0
hexapdf (click) 1098513 921925 599 7877 427 5% 0 0 321
liquid-render (click) 506961 427902 143 1567 92 5% 0 0 5
mail (click) 845201 655893 324 4963 96 1% 0 0 111
psych-load (click) 341329 286443 59 434 1 0% 0 0 0
railsbench (click) 2596049 2102297 1297 9361 224 2% 0 0 26
binarytrees (click) 168913 138452 11 58 0 0% 0 0 0
chunky_png (click) 374929 308960 85 858 0 0% 0 0 0
discourse (click) 6203281 5570225 3088 26506 3105 11% 2 0 140
erubi (click) 329169 276912 10 79 0 0% 0 0 0
erubi_rails (click) 1958353 1595538 262 1896 12 0% 0 0 3
fannkuchredux (click) 183953 149853 8 188 0 0% 0 0 0
lee (click) 379025 316065 45 582 68 11% 0 0 13
nbody (click) 178449 144468 10 159 0 0% 0 0 0
optcarrot (click) 505425 451283 198 3575 20 0% 0 0 0
rubykon (click) 309201 258074 140 1529 1 0% 0 0 0
30k_ifelse (click) 5557265 4358025 9263 57805 0 0% 0 0 0
30k_methods (click) 2171601 1665021 5782 19362 0 0% 0 0 0
cfunc_itself (click) 167185 136659 8 50 0 0% 0 0 0
fib (click) 166737 137063 8 38 0 0% 0 0 0
getivar (click) 167441 137686 8 66 0 0% 0 0 0
keyword_args (click) 167249 135834 9 52 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.