YJIT Benchmarks

Details for Benchmarks at 2022-06-01 19:12:50

Overall YJIT is 27.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.8% 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 5 163 75 163 20 163
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 67 75 67 20 67
chunky_png 5 29 75 29 20 29
discourse 5 33 75 33 20 33
erubi 5 49 75 49 20 49
erubi_rails 5 799 75 799 20 799
fannkuchredux 5 15 51 15 20 15
lee 5 22 75 22 20 22
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 26 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 438 75 438 20 438
fib 5 319 75 319 20 319
getivar 5 763 75 763 20 763
keyword_args 5 377 75 377 20 377
respond_to 5 111 75 111 20 111
setivar 5 1868 75 1868 20 1868
str_concat 5 195 75 195 20 195

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) 1016411 755599 131 1263 0 0% 0 0 0
hexapdf (click) 1120539 879186 682 7751 10 0% 0 0 0
liquid-render (click) 503835 386886 150 1531 2 0% 0 0 0
mail (click) 900507 650975 374 5395 15 0% 0 0 0
psych-load (click) 340379 256079 68 457 1 0% 0 0 0
railsbench (click) 2647131 1932472 1436 9880 16 0% 0 0 0
binarytrees (click) 172827 129584 13 58 0 0% 0 0 0
chunky_png (click) 376987 281965 88 968 0 0% 0 0 0
discourse (click) 5939803 4407120 3197 25354 84 0% 2 0 0
erubi (click) 319451 242736 10 79 0 0% 0 0 0
erubi_rails (click) 1947995 1402142 300 1973 4 0% 0 0 0
fannkuchredux (click) 186843 140282 10 188 0 0% 0 0 0
lee (click) 378779 284230 58 622 0 0% 0 0 0
nbody (click) 182171 136650 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 318171 250823 144 1536 1 0% 0 0 0
30k_ifelse (click) 5563611 4351147 9265 57804 0 0% 0 0 0
30k_methods (click) 2178779 1659609 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) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 173467 129667 10 64 0 0% 0 0 0
setivar (click) 171547 128856 10 38 0 0% 0 0 0
str_concat (click) 172955 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.