YJIT Benchmarks

Details for Benchmarks at 2022-10-19 20:10:38

Overall YJIT is 37.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.8% 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 YJIT warmups YJIT iters
activerecord 5 200 5 200
hexapdf 5 15 5 15
liquid-render 5 176 5 176
mail 5 126 5 126
psych-load 5 15 5 15
railsbench 5 15 5 15
binarytrees 5 82 5 82
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1054 5 1054
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 21 5 21
nbody 5 245 5 245
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 49 5 49
30k_methods 5 20 5 20
cfunc_itself 5 485 5 485
fib 5 327 5 327
getivar 5 426 5 426
keyword_args 5 388 5 388
respond_to 5 716 5 716
setivar 5 425 5 425
str_concat 5 428 5 428

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) 4672681 4679777 23 317 6 1% 0 0 0
hexapdf (click) 3670235 3678282 817 9664 189 1% 0 0 0
liquid-render (click) 1429271 1435969 154 1743 34 1% 0 0 0
mail (click) 2819359 2826985 371 4942 176 3% 0 0 0
psych-load (click) 1776868 1783006 68 489 19 3% 0 0 0
railsbench (click) 10228160 10234997 1777 12888 475 3% 0 0 0
binarytrees (click) 590037 598090 14 70 4 5% 0 0 0
chunky_png (click) 1821114 1828475 87 1039 31 2% 0 0 0
erubi (click) 1689457 1697144 11 78 4 5% 0 0 0
erubi_rails (click) 8472278 8479798 327 2462 107 4% 0 0 0
etanni (click) 578304 584271 11 38 4 10% 0 0 0
fannkuchredux (click) 611421 617988 11 200 4 2% 0 0 0
lee (click) 1839241 1846098 77 746 25 3% 0 0 0
nbody (click) 613485 619549 13 179 6 3% 0 0 0
optcarrot (click) 1458234 1466374 201 4001 93 2% 0 0 0
rubykon (click) 886805 894293 143 1560 32 2% 0 0 0
30k_ifelse (click) 11177443 11184412 9266 57127 4 0% 0 0 0
30k_methods (click) 4509683 4516453 5785 19356 4 0% 0 0 0
cfunc_itself (click) 579360 584858 11 53 4 7% 0 0 0
fib (click) 577901 584541 11 42 4 9% 0 0 0
getivar (click) 579980 586390 11 69 4 5% 0 0 0
keyword_args (click) 580150 585499 12 55 4 7% 0 0 0
respond_to (click) 579504 585716 11 55 5 9% 0 0 0
setivar (click) 580568 585988 11 42 4 9% 0 0 0
str_concat (click) 580016 585992 13 68 6 8% 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.