YJIT Benchmarks

Details for Benchmarks at 2022-06-06 07:14:05

Overall YJIT is 31.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 24.6% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 138 75 138 20 138
mail 5 107 75 107 20 107
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 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 48 75 48 20 48
erubi_rails 5 784 75 784 20 784
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 426 75 426 20 426
fib 5 320 75 320 20 320
getivar 5 758 75 758 20 758
keyword_args 5 377 75 377 20 377
respond_to 5 103 75 103 20 103
setivar 5 1828 75 1828 20 1828
str_concat 5 202 75 202 20 202

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) 1013147 753865 131 1245 0 0% 0 0 0
hexapdf (click) 1123995 881631 683 7785 10 0% 0 0 0
liquid-render (click) 503899 386745 150 1517 2 0% 0 0 0
mail (click) 930011 673072 374 5727 15 0% 0 0 0
psych-load (click) 339611 255099 68 457 1 0% 0 0 0
railsbench (click) 2637723 1926655 1436 9831 16 0% 0 0 0
binarytrees (click) 174107 130445 13 58 0 0% 0 0 0
chunky_png (click) 376539 281847 88 966 0 0% 0 0 0
discourse (click) 5937947 4406623 3197 25384 84 0% 2 0 0
erubi (click) 319515 242736 10 79 0 0% 0 0 0
erubi_rails (click) 1947931 1401256 300 1964 4 0% 0 0 0
fannkuchredux (click) 188123 141143 10 188 0 0% 0 0 0
lee (click) 378395 283852 58 622 0 0% 0 0 0
nbody (click) 183707 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 319643 251742 145 1537 2 0% 0 0 0
30k_ifelse (click) 5563291 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171227 128682 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 173467 129715 11 51 0 0% 0 0 0
respond_to (click) 174747 130528 10 64 0 0% 0 0 0
setivar (click) 172955 129717 10 38 0 0% 0 0 0
str_concat (click) 172827 130037 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.