YJIT Benchmarks

Details for Benchmarks at 2022-05-09 07:13:14

Overall YJIT is 33.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.8% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 30 75 30 20 30
discourse 5 38 75 38 20 38
erubi 5 47 75 47 20 47
erubi_rails 5 1007 75 1007 20 1007
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 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 5 319 75 319 20 319
getivar 5 764 75 764 20 764
keyword_args 5 378 75 378 20 378
respond_to 5 106 75 106 20 106
setivar 5 1836 75 1836 20 1836
str_concat 5 189 75 189 20 189

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) 1014107 753082 131 1248 0 0% 0 0 0
hexapdf (click) 1115227 874544 683 7699 9 0% 0 0 0
liquid-render (click) 509339 390169 150 1593 2 0% 0 0 0
mail (click) 879515 637349 374 5218 15 0% 0 0 0
psych-load (click) 339995 255478 68 457 1 0% 0 0 0
railsbench (click) 2617883 1911495 1435 9786 16 0% 0 0 0
binarytrees (click) 172251 129555 13 58 0 0% 0 0 0
chunky_png (click) 379163 283292 88 989 0 0% 0 0 0
discourse (click) 5851419 4337179 3162 24927 81 0% 2 0 0
erubi (click) 322843 242807 10 79 0 0% 0 0 0
erubi_rails (click) 1930907 1389651 300 1971 4 0% 0 0 0
fannkuchredux (click) 185627 139692 10 188 0 0% 0 0 0
lee (click) 377947 283480 58 618 0 0% 0 0 0
nbody (click) 182747 137081 12 158 0 0% 0 0 0
optcarrot (click) 513179 441956 207 3571 20 0% 0 0 0
rubykon (click) 316443 249786 144 1518 1 0% 0 0 0
30k_ifelse (click) 5561563 4349830 9265 57804 0 0% 0 0 0
30k_methods (click) 2183771 1660888 5784 19405 0 0% 0 0 0
cfunc_itself (click) 171035 128135 10 49 0 0% 0 0 0
fib (click) 169499 127743 10 38 0 0% 0 0 0
getivar (click) 171291 130254 10 65 0 0% 0 0 0
keyword_args (click) 171867 128776 11 51 0 0% 0 0 0
respond_to (click) 172827 129373 10 64 0 0% 0 0 0
setivar (click) 170651 128347 10 38 0 0% 0 0 0
str_concat (click) 171227 129098 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.