YJIT Benchmarks

Details for Benchmarks at 2022-09-16 05:38:07

Overall YJIT is 36.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.3% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 177 75 177 20 177
mail 5 128 75 128 20 128
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
erubi 5 67 75 67 20 67
erubi_rails 5 1041 75 1041 20 1041
fannkuchredux 5 15 55 15 20 15
lee 5 21 75 21 20 21
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 69 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 431 75 431 20 431
fib 5 317 75 317 20 317
getivar 5 467 75 467 20 467
keyword_args 5 363 75 363 20 363
respond_to 5 649 75 649 20 649
setivar 5 436 75 436 20 436
str_concat 5 431 75 431 20 431

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) 1065335 776033 131 1267 0 0% 0 0 0
hexapdf (click) 1178679 919760 682 8046 9 0% 0 0 0
liquid-render (click) 522423 395966 150 1652 2 0% 0 0 0
mail (click) 952567 662640 374 5632 17 0% 0 0 0
psych-load (click) 355447 260672 68 474 1 0% 0 0 0
railsbench (click) 2723511 1958999 1436 10024 16 0% 0 0 0
binarytrees (click) 176695 127145 13 64 0 0% 0 0 0
chunky_png (click) 399543 288590 88 1030 0 0% 0 0 0
erubi (click) 340727 250259 10 79 0 0% 0 0 0
erubi_rails (click) 2013239 1422453 300 2031 4 0% 0 0 0
fannkuchredux (click) 189879 136594 10 196 0 0% 0 0 0
lee (click) 396407 288628 58 634 0 0% 0 0 0
nbody (click) 186615 135761 12 171 0 0% 0 0 0
optcarrot (click) 531831 441312 207 3592 20 0% 0 0 0
rubykon (click) 331383 256597 144 1593 1 0% 0 0 0
30k_ifelse (click) 5664247 4347294 9265 57804 0 0% 0 0 0
30k_methods (click) 2208503 1655756 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174391 125599 10 49 0 0% 0 0 0
fib (click) 172727 125207 10 38 0 0% 0 0 0
getivar (click) 174135 127034 10 65 0 0% 0 0 0
keyword_args (click) 175095 126240 11 51 0 0% 0 0 0
respond_to (click) 174647 126813 10 64 0 0% 0 0 0
setivar (click) 174391 126114 10 38 0 0% 0 0 0
str_concat (click) 174391 126446 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.