YJIT Benchmarks

Details for Benchmarks at 2022-07-20 05:17:27

Overall YJIT is 36.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.4% 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 5 175 75 175 20 175
hexapdf 5 15 20 15
liquid-render 5 148 75 148 20 148
mail 5 124 75 124 20 124
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
erubi 5 57 75 57 20 57
erubi_rails 5 1012 75 1012 20 1012
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 260 75 260 20 260
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 50 75 50 20 50
30k_methods 5 22 30 22 20 22
cfunc_itself 5 429 75 429 20 429
fib 5 315 75 315 20 315
getivar 5 610 75 610 20 610
keyword_args 5 373 75 373 20 373
respond_to 5 111 75 111 20 111
setivar 5 956 75 956 20 956
str_concat 5 366 75 366 20 366

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) 1033499 778527 131 1245 0 0% 0 0 0
hexapdf (click) 1149723 927472 683 7939 9 0% 0 0 0
liquid-render (click) 524059 409668 150 1700 2 0% 0 0 0
mail (click) 953819 695147 374 5817 17 0% 0 0 0
psych-load (click) 348635 264673 68 476 1 0% 0 0 0
railsbench (click) 2659803 1973801 1436 9962 16 0% 0 0 0
binarytrees (click) 172443 129238 13 58 0 0% 0 0 0
chunky_png (click) 384667 289204 88 970 0 0% 0 0 0
erubi (click) 324059 247898 10 79 0 0% 0 0 0
erubi_rails (click) 1963739 1432584 300 2003 4 0% 0 0 0
fannkuchredux (click) 186459 139936 10 188 0 0% 0 0 0
lee (click) 386459 292535 58 630 0 0% 0 0 0
nbody (click) 183131 138433 12 171 0 0% 0 0 0
optcarrot (click) 514971 445144 207 3588 20 0% 0 0 0
rubykon (click) 321755 258284 144 1570 1 0% 0 0 0
30k_ifelse (click) 5561499 4349562 9265 57804 0 0% 0 0 0
30k_methods (click) 2176667 1658024 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170971 127867 10 49 0 0% 0 0 0
fib (click) 169435 127475 10 38 0 0% 0 0 0
getivar (click) 171291 130186 10 65 0 0% 0 0 0
keyword_args (click) 171803 128508 11 51 0 0% 0 0 0
respond_to (click) 173467 129489 10 64 0 0% 0 0 0
setivar (click) 171163 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.