YJIT Benchmarks

Details for Benchmarks at 2022-08-24 05:30:55

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.9% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 160 75 160 20 160
mail 5 127 75 127 20 127
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
erubi 5 60 75 60 20 60
erubi_rails 5 1027 75 1027 20 1027
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 35 15 20 15
30k_ifelse 5 56 63 56 20 56
30k_methods 5 22 22 22 20 22
cfunc_itself 5 420 75 420 20 420
fib 5 315 75 315 20 315
getivar 5 615 75 615 20 615
keyword_args 5 363 75 363 20 363
respond_to 5 107 75 107 20 107
setivar 5 980 75 980 20 980
str_concat 5 434 75 434 20 434

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) 1037147 780400 131 1266 0 0% 0 0 0
hexapdf (click) 1149787 923609 682 8013 9 0% 0 0 0
liquid-render (click) 519579 404323 150 1679 2 0% 0 0 0
mail (click) 904667 652279 374 5361 17 0% 0 0 0
psych-load (click) 346843 262997 68 482 1 0% 0 0 0
railsbench (click) 2650459 1962532 1436 9983 16 0% 0 0 0
binarytrees (click) 171355 128129 13 58 0 0% 0 0 0
chunky_png (click) 387291 290183 88 992 0 0% 0 0 0
erubi (click) 331675 252835 10 79 0 0% 0 0 0
erubi_rails (click) 1960347 1428049 300 2017 4 0% 0 0 0
fannkuchredux (click) 185179 137847 10 196 0 0% 0 0 0
lee (click) 386203 291653 58 632 0 0% 0 0 0
nbody (click) 181595 136896 12 171 0 0% 0 0 0
optcarrot (click) 513371 442491 207 3588 20 0% 0 0 0
rubykon (click) 320475 256633 144 1576 1 0% 0 0 0
30k_ifelse (click) 5560027 4348169 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169499 126474 10 49 0 0% 0 0 0
fib (click) 168347 126510 10 38 0 0% 0 0 0
getivar (click) 169691 128169 10 65 0 0% 0 0 0
keyword_args (click) 170459 127165 11 51 0 0% 0 0 0
respond_to (click) 171867 128306 10 64 0 0% 0 0 0
setivar (click) 169755 127039 10 38 0 0% 0 0 0
str_concat (click) 169755 127371 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.