YJIT Benchmarks

Details for Benchmarks at 2022-06-08 07:15:50

Overall YJIT is 36.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.6% 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.

Want Raw Graphs and CSV?

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 5 189 75 189 20 189
hexapdf 5 15 20 15
liquid-render 5 151 75 151 20 151
mail 5 105 75 105 20 105
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 59 75 59 20 59
chunky_png 5 28 75 28 20 28
discourse 5 32 75 32 20 32
erubi 5 45 75 45 20 45
erubi_rails 5 755 75 755 20 755
fannkuchredux 5 15 51 15 20 15
lee 5 20 75 20 20 20
nbody 5 312 75 312 20 312
optcarrot 5 15 75 15 20 15
rubykon 5 15 30 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 401 75 401 20 401
fib 5 318 75 318 20 318
getivar 5 775 75 775 20 775
keyword_args 5 346 75 346 20 346
respond_to 5 94 75 94 20 94
setivar 5 1449 75 1449 20 1449
str_concat 5 188 75 188 20 188

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) 1016155 755285 131 1272 0 0% 0 0 0
hexapdf (click) 1121435 880006 683 7761 10 0% 0 0 0
liquid-render (click) 517083 396024 150 1663 2 0% 0 0 0
mail (click) 916827 663010 374 5572 15 0% 0 0 0
psych-load (click) 340315 255551 68 462 1 0% 0 0 0
railsbench (click) 2622555 1918180 1436 9857 16 0% 0 0 0
binarytrees (click) 173275 129880 13 58 0 0% 0 0 0
chunky_png (click) 381019 284711 88 1003 0 0% 0 0 0
discourse (click) 5929435 4402335 3195 25525 85 0% 2 0 0
erubi (click) 319515 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1931163 1391252 300 1999 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 377947 283498 58 622 0 0% 0 0 0
nbody (click) 183643 137646 12 158 0 0% 0 0 0
optcarrot (click) 514843 442895 207 3571 20 0% 0 0 0
rubykon (click) 320027 252206 144 1544 1 0% 0 0 0
30k_ifelse (click) 5563483 4350867 9265 57806 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171227 128682 10 38 0 0% 0 0 0
getivar (click) 172955 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174875 130528 10 64 0 0% 0 0 0
setivar (click) 172891 129717 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 12 62 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.