YJIT Benchmarks

Details for Benchmarks at 2022-05-08 07:13:10

Overall YJIT is 33.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.4% 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 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 123 75 123 20 123
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 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 1003 75 1003 20 1003
fannkuchredux 5 15 73 15 20 15
lee 5 22 75 22 20 22
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 28 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 319 75 319 20 319
getivar 5 764 75 764 20 764
keyword_args 5 379 75 379 20 379
respond_to 5 106 75 106 20 106
setivar 5 1858 75 1858 20 1858
str_concat 5 200 75 200 20 200

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) 1013787 752950 131 1248 0 0% 0 0 0
hexapdf (click) 1113499 872983 682 7690 9 0% 0 0 0
liquid-render (click) 512731 392989 150 1636 2 0% 0 0 0
mail (click) 928411 672004 374 5697 15 0% 0 0 0
psych-load (click) 339931 255453 68 457 1 0% 0 0 0
railsbench (click) 2624795 1915925 1435 9836 16 0% 0 0 0
binarytrees (click) 173211 129880 13 58 0 0% 0 0 0
chunky_png (click) 378459 282803 88 988 0 0% 0 0 0
discourse (click) 5905115 4375286 3197 25373 83 0% 2 0 0
erubi (click) 322267 242503 10 79 0 0% 0 0 0
erubi_rails (click) 1926875 1386608 300 1950 4 0% 0 0 0
fannkuchredux (click) 187163 140578 10 188 0 0% 0 0 0
lee (click) 377947 283455 58 618 0 0% 0 0 0
nbody (click) 182171 136785 12 158 0 0% 0 0 0
optcarrot (click) 513883 442330 207 3571 20 0% 0 0 0
rubykon (click) 317467 250660 144 1530 1 0% 0 0 0
30k_ifelse (click) 5562331 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2184091 1661454 5784 19401 0 0% 0 0 0
cfunc_itself (click) 171739 128509 10 49 0 0% 0 0 0
fib (click) 170139 128117 10 38 0 0% 0 0 0
getivar (click) 171995 130628 10 65 0 0% 0 0 0
keyword_args (click) 172571 129150 11 51 0 0% 0 0 0
respond_to (click) 173339 129667 10 64 0 0% 0 0 0
setivar (click) 171931 129152 10 38 0 0% 0 0 0
str_concat (click) 171931 129472 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.