YJIT Benchmarks

Details for Benchmarks at 2022-07-12 20:14:14

Overall YJIT is 35.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.7% 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 5 187 75 187 20 187
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 125 75 125 20 125
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 24 75 24 20 24
erubi 5 52 75 52 20 52
erubi_rails 5 1001 75 1001 20 1001
fannkuchredux 5 15 57 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 314 75 314 20 314
getivar 5 755 75 755 20 755
keyword_args 5 366 75 366 20 366
respond_to 5 103 75 103 20 103
setivar 5 1849 75 1849 20 1849
str_concat 5 388 75 388 20 388

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) 1028187 763897 131 1262 0 0% 0 0 0
hexapdf (click) 1123483 881578 682 7756 9 0% 0 0 0
liquid-render (click) 510299 391434 150 1616 2 0% 0 0 0
mail (click) 900379 649840 374 5316 15 0% 0 0 0
psych-load (click) 344667 258169 68 462 1 0% 0 0 0
railsbench (click) 2633371 1924912 1436 9881 16 0% 0 0 0
binarytrees (click) 172443 129154 13 58 0 0% 0 0 0
chunky_png (click) 385563 287612 88 1000 0 0% 0 0 0
erubi (click) 321115 243840 10 79 0 0% 0 0 0
erubi_rails (click) 1944987 1399125 300 1997 4 0% 0 0 0
fannkuchredux (click) 186459 139852 10 188 0 0% 0 0 0
lee (click) 382875 286453 58 623 0 0% 0 0 0
nbody (click) 181915 136355 12 158 0 0% 0 0 0
optcarrot (click) 514395 442558 207 3585 20 0% 0 0 0
rubykon (click) 316955 249834 144 1530 1 0% 0 0 0
30k_ifelse (click) 5561499 4349478 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658236 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170971 127783 10 49 0 0% 0 0 0
fib (click) 169435 127391 10 38 0 0% 0 0 0
getivar (click) 171739 130231 10 65 0 0% 0 0 0
keyword_args (click) 172315 128720 11 51 0 0% 0 0 0
respond_to (click) 174107 129862 10 64 0 0% 0 0 0
setivar (click) 171163 128426 10 38 0 0% 0 0 0
str_concat (click) 171099 128801 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.