YJIT Benchmarks

Details for Benchmarks at 2022-08-12 05:14:26

Overall YJIT is 36.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 37.4% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 127 75 127 20 127
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
erubi 5 60 75 60 20 60
erubi_rails 5 1025 75 1025 20 1025
fannkuchredux 5 15 75 15 20 15
lee 5 19 75 19 20 19
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 35 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 30 22 20 22
cfunc_itself 5 429 75 429 20 429
fib 5 300 75 300 20 300
getivar 5 620 75 620 20 620
keyword_args 5 360 75 360 20 360
respond_to 5 110 75 110 20 110
setivar 5 989 75 989 20 989
str_concat 5 439 75 439 20 439

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) 1036443 779712 131 1287 0 0% 0 0 0
hexapdf (click) 1150235 924072 682 8012 9 0% 0 0 0
liquid-render (click) 516571 402306 150 1704 2 0% 0 0 0
mail (click) 943067 679095 374 5765 17 0% 0 0 0
psych-load (click) 347675 263701 68 482 1 0% 0 0 0
railsbench (click) 2660059 1969343 1436 10058 16 0% 0 0 0
binarytrees (click) 172187 128626 13 58 0 0% 0 0 0
chunky_png (click) 386203 289256 88 1000 0 0% 0 0 0
erubi (click) 321819 245290 10 79 0 0% 0 0 0
erubi_rails (click) 1962843 1429654 300 2032 4 0% 0 0 0
fannkuchredux (click) 185691 138098 10 196 0 0% 0 0 0
lee (click) 385435 291087 58 632 0 0% 0 0 0
nbody (click) 182811 137821 12 171 0 0% 0 0 0
optcarrot (click) 513755 442692 207 3588 20 0% 0 0 0
rubykon (click) 321947 257617 144 1577 1 0% 0 0 0
30k_ifelse (click) 5560795 4348798 9265 57804 0 0% 0 0 0
30k_methods (click) 2175963 1657260 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170267 127103 10 49 0 0% 0 0 0
fib (click) 168731 126711 10 38 0 0% 0 0 0
getivar (click) 170907 129094 10 65 0 0% 0 0 0
keyword_args (click) 171099 127744 11 51 0 0% 0 0 0
respond_to (click) 172379 128557 10 64 0 0% 0 0 0
setivar (click) 170395 127618 10 38 0 0% 0 0 0
str_concat (click) 170843 128246 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.