YJIT Benchmarks

Details for Benchmarks at 2022-05-01 07:13:01

Overall YJIT is 32.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.3% 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 5 187 75 187 20 187
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 125 75 125 20 125
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 28 75 28 20 28
discourse 5 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 1003 75 1003 20 1003
fannkuchredux 5 15 73 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 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 446 75 446 20 446
fib 5 320 75 320 20 320
getivar 5 763 75 763 20 763
keyword_args 5 378 75 378 20 378
respond_to 5 104 75 104 20 104
setivar 5 1863 75 1863 20 1863
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) 1006939 747894 131 1234 0 0% 0 0 0
hexapdf (click) 1094043 856414 683 7471 9 0% 0 0 0
liquid-render (click) 512923 392681 150 1649 2 0% 0 0 0
mail (click) 726427 545291 374 3489 15 0% 0 0 0
psych-load (click) 338459 254449 68 457 1 0% 0 0 0
railsbench (click) 2609947 1905090 1435 9724 16 0% 0 0 0
binarytrees (click) 171611 128872 13 54 0 0% 0 0 0
chunky_png (click) 370971 277054 88 921 0 0% 0 0 0
discourse (click) 5896155 4368166 3196 25362 83 0% 2 0 0
erubi (click) 321243 241803 10 79 0 0% 0 0 0
erubi_rails (click) 1924315 1384055 300 1960 4 0% 0 0 0
fannkuchredux (click) 186267 139968 10 188 0 0% 0 0 0
lee (click) 376923 282780 58 618 0 0% 0 0 0
nbody (click) 180571 135641 12 146 0 0% 0 0 0
optcarrot (click) 460379 395526 207 3017 20 0% 0 0 0
rubykon (click) 283483 222071 144 1171 0 0% 0 0 0
30k_ifelse (click) 5561371 4349594 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658292 5784 19365 0 0% 0 0 0
cfunc_itself (click) 170331 127603 10 49 0 0% 0 0 0
fib (click) 168795 127211 10 38 0 0% 0 0 0
getivar (click) 168475 127346 10 34 0 0% 0 0 0
keyword_args (click) 171675 128540 11 51 0 0% 0 0 0
respond_to (click) 172443 129057 10 64 0 0% 0 0 0
setivar (click) 170523 128246 10 38 0 0% 0 0 0
str_concat (click) 169499 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.