YJIT Benchmarks

Details for Benchmarks at 2022-06-23 20:14:47

Overall YJIT is 36.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.3% 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 5 191 75 191 20 191
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 66 75 66 20 66
chunky_png 5 30 75 30 20 30
erubi 5 50 75 50 20 50
erubi_rails 5 995 75 995 20 995
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 446 75 446 20 446
fib 5 315 75 315 20 315
getivar 5 762 75 762 20 762
keyword_args 5 377 75 377 20 377
respond_to 5 100 75 100 20 100
setivar 5 1850 75 1850 20 1850
str_concat 5 197 75 197 20 197

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) 1013723 754082 131 1255 0 0% 0 0 0
hexapdf (click) 1123355 881669 683 7792 9 0% 0 0 0
liquid-render (click) 508635 389805 150 1584 2 0% 0 0 0
mail (click) 943131 680990 374 5829 15 0% 0 0 0
psych-load (click) 339739 255553 68 457 1 0% 0 0 0
railsbench (click) 2624603 1919110 1436 9875 16 0% 0 0 0
binarytrees (click) 172699 129504 13 58 0 0% 0 0 0
chunky_png (click) 376603 281654 88 970 0 0% 0 0 0
erubi (click) 318875 242427 10 79 0 0% 0 0 0
erubi_rails (click) 1927131 1388697 300 1979 4 0% 0 0 0
fannkuchredux (click) 186715 140202 10 188 0 0% 0 0 0
lee (click) 377691 283393 58 622 0 0% 0 0 0
nbody (click) 182683 137001 12 158 0 0% 0 0 0
optcarrot (click) 513883 442250 207 3571 20 0% 0 0 0
rubykon (click) 318043 250846 144 1534 1 0% 0 0 0
30k_ifelse (click) 5562267 4350124 9265 57804 0 0% 0 0 0
30k_methods (click) 2177435 1658586 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171739 128429 10 49 0 0% 0 0 0
fib (click) 170203 128037 10 38 0 0% 0 0 0
getivar (click) 171995 130548 10 65 0 0% 0 0 0
keyword_args (click) 172571 129070 11 51 0 0% 0 0 0
respond_to (click) 173851 129883 10 64 0 0% 0 0 0
setivar (click) 171931 129072 10 38 0 0% 0 0 0
str_concat (click) 171931 129392 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.