YJIT Benchmarks

Details for Benchmarks at 2022-07-18 20:14:02

Overall YJIT is 35.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.2% 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 5 158 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 65 75 65 20 65
chunky_png 5 30 75 30 20 30
erubi 5 53 75 53 20 53
erubi_rails 5 995 75 995 20 995
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 23 30 23 20 23
cfunc_itself 5 450 75 450 20 450
fib 5 315 75 315 20 315
getivar 5 628 75 628 20 628
keyword_args 5 372 75 372 20 372
respond_to 5 109 75 109 20 109
setivar 5 1030 75 1030 20 1030
str_concat 5 380 75 380 20 380

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) 1036379 780060 131 1257 0 0% 0 0 0
hexapdf (click) 1149595 927733 682 7940 9 0% 0 0 0
liquid-render (click) 523355 409100 150 1706 2 0% 0 0 0
mail (click) 952219 694344 374 5806 17 0% 0 0 0
psych-load (click) 348635 264648 68 476 1 0% 0 0 0
railsbench (click) 2663323 1975795 1436 9985 16 0% 0 0 0
binarytrees (click) 172443 129238 13 58 0 0% 0 0 0
chunky_png (click) 387483 291123 88 997 0 0% 0 0 0
erubi (click) 323995 247830 10 79 0 0% 0 0 0
erubi_rails (click) 1963675 1432884 300 1993 4 0% 0 0 0
fannkuchredux (click) 186459 139936 10 188 0 0% 0 0 0
lee (click) 386395 292417 58 630 0 0% 0 0 0
nbody (click) 182619 138137 12 171 0 0% 0 0 0
optcarrot (click) 515419 445312 207 3588 20 0% 0 0 0
rubykon (click) 322971 259435 144 1582 1 0% 0 0 0
30k_ifelse (click) 5561883 4349730 9265 57804 0 0% 0 0 0
30k_methods (click) 2177051 1658192 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170971 127867 10 49 0 0% 0 0 0
fib (click) 169819 127643 10 38 0 0% 0 0 0
getivar (click) 171291 130186 10 65 0 0% 0 0 0
keyword_args (click) 172251 128676 11 51 0 0% 0 0 0
respond_to (click) 172571 129025 10 64 0 0% 0 0 0
setivar (click) 171227 128510 10 38 0 0% 0 0 0
str_concat (click) 171099 128885 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.