YJIT Benchmarks

Details for Benchmarks at 2022-07-04 05:20:20

Overall YJIT is 35.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.6% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 30 75 30 20 30
erubi 5 53 75 53 20 53
erubi_rails 5 991 75 991 20 991
fannkuchredux 5 15 57 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 34 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 314 75 314 20 314
getivar 5 768 75 768 20 768
keyword_args 5 374 75 374 20 374
respond_to 5 108 75 108 20 108
setivar 5 1853 75 1853 20 1853
str_concat 5 382 75 382 20 382

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) 1027227 763178 131 1241 0 0% 0 0 0
hexapdf (click) 1123227 881312 682 7751 9 0% 0 0 0
liquid-render (click) 512923 393669 150 1645 2 0% 0 0 0
mail (click) 926427 668237 374 5581 15 0% 0 0 0
psych-load (click) 344219 257847 68 457 1 0% 0 0 0
railsbench (click) 2632859 1924992 1436 9880 16 0% 0 0 0
binarytrees (click) 173467 129779 13 58 0 0% 0 0 0
chunky_png (click) 388827 289080 88 1026 0 0% 0 0 0
erubi (click) 321179 243815 10 79 0 0% 0 0 0
erubi_rails (click) 1945947 1399591 300 2015 4 0% 0 0 0
fannkuchredux (click) 186971 140148 10 188 0 0% 0 0 0
lee (click) 379995 284220 58 623 0 0% 0 0 0
nbody (click) 182427 136651 12 158 0 0% 0 0 0
optcarrot (click) 514395 442558 207 3585 20 0% 0 0 0
rubykon (click) 317211 250165 144 1532 1 0% 0 0 0
30k_ifelse (click) 5562523 4350103 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658236 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128079 10 49 0 0% 0 0 0
fib (click) 170459 128016 10 38 0 0% 0 0 0
getivar (click) 171739 130198 10 65 0 0% 0 0 0
keyword_args (click) 172827 129049 11 51 0 0% 0 0 0
respond_to (click) 173595 129533 10 64 0 0% 0 0 0
setivar (click) 171675 128722 10 38 0 0% 0 0 0
str_concat (click) 172123 129426 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.