YJIT Benchmarks

Details for Benchmarks at 2022-05-04 07:13:04

Overall YJIT is 34.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.7% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
discourse 5 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 1007 75 1007 20 1007
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
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 5 415 75 415 20 415
fib 5 320 75 320 20 320
getivar 5 764 75 764 20 764
keyword_args 5 379 75 379 20 379
respond_to 5 103 75 103 20 103
setivar 5 1840 75 1840 20 1840
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) 1011035 751360 131 1236 0 0% 0 0 0
hexapdf (click) 1113819 873087 682 7688 9 0% 0 0 0
liquid-render (click) 511259 392073 150 1629 2 0% 0 0 0
mail (click) 891995 645831 374 5334 15 0% 0 0 0
psych-load (click) 339099 255031 68 457 1 0% 0 0 0
railsbench (click) 2623899 1915188 1435 9831 16 0% 0 0 0
binarytrees (click) 173211 129880 13 58 0 0% 0 0 0
chunky_png (click) 377179 281925 88 970 0 0% 0 0 0
discourse (click) 5918235 4384641 3235 25515 83 0% 2 0 0
erubi (click) 321947 242410 10 79 0 0% 0 0 0
erubi_rails (click) 1927899 1387169 300 1974 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 377627 283337 58 618 0 0% 0 0 0
nbody (click) 182683 137081 12 158 0 0% 0 0 0
optcarrot (click) 513883 442330 207 3571 20 0% 0 0 0
rubykon (click) 319387 251970 144 1545 1 0% 0 0 0
30k_ifelse (click) 5562715 4350533 9265 57804 0 0% 0 0 0
30k_methods (click) 2177435 1658666 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171675 128509 10 49 0 0% 0 0 0
fib (click) 170203 128117 10 38 0 0% 0 0 0
getivar (click) 171995 130628 10 65 0 0% 0 0 0
keyword_args (click) 172827 129528 11 51 0 0% 0 0 0
respond_to (click) 173851 129963 10 64 0 0% 0 0 0
setivar (click) 171931 129152 10 38 0 0% 0 0 0
str_concat (click) 171867 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.