YJIT Benchmarks

Details for Benchmarks at 2022-09-17 20:11:31

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.6% 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.

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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 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 179 75 179 20 179
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 83 75 83 20 83
chunky_png 5 30 75 30 20 30
erubi 5 66 75 66 20 66
erubi_rails 5 1042 75 1042 20 1042
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 266 75 266 20 266
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 72 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 428 75 428 20 428
fib 5 317 75 317 20 317
getivar 5 467 75 467 20 467
keyword_args 5 368 75 368 20 368
respond_to 5 667 75 667 20 667
setivar 5 402 75 402 20 402
str_concat 5 428 75 428 20 428

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) 1065463 776147 131 1267 0 0% 0 0 0
hexapdf (click) 1176695 918258 682 8044 9 0% 0 0 0
liquid-render (click) 522551 396623 150 1696 2 0% 0 0 0
mail (click) 952823 663055 374 5629 17 0% 0 0 0
psych-load (click) 355447 260647 68 474 1 0% 0 0 0
railsbench (click) 2720311 1954945 1436 10017 16 0% 0 0 0
binarytrees (click) 177143 127690 13 64 0 0% 0 0 0
chunky_png (click) 402807 290451 88 1063 0 0% 0 0 0
erubi (click) 341111 250544 10 79 0 0% 0 0 0
erubi_rails (click) 2014135 1422704 300 2028 4 0% 0 0 0
fannkuchredux (click) 189815 136544 10 196 0 0% 0 0 0
lee (click) 396407 288653 58 634 0 0% 0 0 0
nbody (click) 186935 135971 12 171 0 0% 0 0 0
optcarrot (click) 531639 441194 207 3592 20 0% 0 0 0
rubykon (click) 329335 255139 144 1577 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) 172343 124947 10 38 0 0% 0 0 0
getivar (click) 174519 127294 10 65 0 0% 0 0 0
keyword_args (click) 174647 125930 11 51 0 0% 0 0 0
respond_to (click) 173367 126110 10 64 0 0% 0 0 0
setivar (click) 174327 126064 10 38 0 0% 0 0 0
str_concat (click) 173111 125743 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.