YJIT Benchmarks

Details for Benchmarks at 2022-05-02 19:17:44

Overall YJIT is 33.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.7% 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 5 158 75 158 20 158
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 28 75 28 20 28
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 1007 75 1007 20 1007
fannkuchredux 5 15 73 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 28 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 446 75 446 20 446
fib 5 319 75 319 20 319
getivar 5 763 75 763 20 763
keyword_args 5 378 75 378 20 378
respond_to 5 103 75 103 20 103
setivar 5 1865 75 1865 20 1865
str_concat 5 198 75 198 20 198

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) 1008539 749305 131 1253 0 0% 0 0 0
hexapdf (click) 1091611 854283 682 7442 9 0% 0 0 0
liquid-render (click) 509467 389505 150 1610 2 0% 0 0 0
mail (click) 709083 533548 374 3339 15 0% 0 0 0
psych-load (click) 338459 254424 68 457 1 0% 0 0 0
railsbench (click) 2617243 1910608 1435 9800 16 0% 0 0 0
binarytrees (click) 171611 128872 13 54 0 0% 0 0 0
chunky_png (click) 374875 279361 88 958 0 0% 0 0 0
discourse (click) 5960411 4414351 3268 25895 85 0% 2 0 0
erubi (click) 321563 242181 10 79 0 0% 0 0 0
erubi_rails (click) 1924955 1384835 300 1980 4 0% 0 0 0
fannkuchredux (click) 186843 140297 10 188 0 0% 0 0 0
lee (click) 376987 282755 58 618 0 0% 0 0 0
nbody (click) 180059 135345 12 146 0 0% 0 0 0
optcarrot (click) 460635 395904 207 3017 20 0% 0 0 0
rubykon (click) 282523 221484 144 1163 0 0% 0 0 0
30k_ifelse (click) 5561371 4349594 9265 57804 0 0% 0 0 0
30k_methods (click) 2176539 1658056 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170331 127603 10 49 0 0% 0 0 0
fib (click) 169307 127507 10 38 0 0% 0 0 0
getivar (click) 169243 127593 10 34 0 0% 0 0 0
keyword_args (click) 171931 128918 11 51 0 0% 0 0 0
respond_to (click) 172955 129353 10 64 0 0% 0 0 0
setivar (click) 171035 128542 10 38 0 0% 0 0 0
str_concat (click) 169563 127596 12 43 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.