YJIT Benchmarks

Details for Benchmarks at 2022-05-18 07:13:15

Overall YJIT is 27.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.5% 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 5 151 75 151 20 151
hexapdf 5 15 20 15
liquid-render 5 138 75 138 20 138
mail 5 105 75 105 20 105
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 37 75 37 20 37
erubi 5 48 75 48 20 48
erubi_rails 5 807 75 807 20 807
fannkuchredux 5 15 53 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 25 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 320 75 320 20 320
getivar 5 762 75 762 20 762
keyword_args 5 379 75 379 20 379
respond_to 5 107 75 107 20 107
setivar 5 1865 75 1865 20 1865
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) 1019931 758481 131 1272 0 0% 0 0 0
hexapdf (click) 1119195 878423 682 7743 10 0% 0 0 0
liquid-render (click) 502491 385833 150 1516 2 0% 0 0 0
mail (click) 898459 649656 374 5384 15 0% 0 0 0
psych-load (click) 339483 255124 68 457 1 0% 0 0 0
railsbench (click) 2635547 1924940 1436 9819 16 0% 0 0 0
binarytrees (click) 173275 129880 13 58 0 0% 0 0 0
chunky_png (click) 377115 282474 88 968 0 0% 0 0 0
discourse (click) 5908123 4383609 3162 25115 82 0% 2 0 0
erubi (click) 318235 241965 10 79 0 0% 0 0 0
erubi_rails (click) 1948187 1401516 300 1975 4 0% 0 0 0
fannkuchredux (click) 187291 140578 10 188 0 0% 0 0 0
lee (click) 377947 283548 58 622 0 0% 0 0 0
nbody (click) 182747 137081 12 158 0 0% 0 0 0
optcarrot (click) 513947 442330 207 3571 20 0% 0 0 0
rubykon (click) 318491 251295 144 1543 1 0% 0 0 0
30k_ifelse (click) 5562331 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2177499 1658666 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171803 128509 10 49 0 0% 0 0 0
fib (click) 170267 128117 10 38 0 0% 0 0 0
getivar (click) 172059 130628 10 65 0 0% 0 0 0
keyword_args (click) 172635 129150 11 51 0 0% 0 0 0
respond_to (click) 173915 129963 10 64 0 0% 0 0 0
setivar (click) 171995 129152 10 38 0 0% 0 0 0
str_concat (click) 171995 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.