YJIT Benchmarks

Details for Benchmarks at 2022-06-05 19:12:47

Overall YJIT is 32.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 25.8% 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 5 106 75 106 20 106
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 29 75 29 20 29
discourse 5 33 75 33 20 33
erubi 5 46 75 46 20 46
erubi_rails 5 786 75 786 20 786
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 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 320 75 320 20 320
getivar 5 758 75 758 20 758
keyword_args 5 353 75 353 20 353
respond_to 5 106 75 106 20 106
setivar 5 1848 75 1848 20 1848
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) 1016027 755300 131 1256 0 0% 0 0 0
hexapdf (click) 1119963 879186 682 7742 9 0% 0 0 0
liquid-render (click) 501659 385284 150 1508 2 0% 0 0 0
mail (click) 903003 653576 374 5413 15 0% 0 0 0
psych-load (click) 339675 255149 68 457 1 0% 0 0 0
railsbench (click) 2644443 1931533 1436 9877 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 378395 282870 88 977 0 0% 0 0 0
discourse (click) 5900251 4378939 3162 25056 82 0% 2 0 0
erubi (click) 319515 242761 10 79 0 0% 0 0 0
erubi_rails (click) 1954907 1406573 300 2026 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 378395 283827 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) 321627 253622 144 1560 1 0% 0 0 0
30k_ifelse (click) 5561883 4349908 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) 169819 127821 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) 174875 130528 10 64 0 0% 0 0 0
setivar (click) 172955 129717 10 38 0 0% 0 0 0
str_concat (click) 171611 129176 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.