YJIT Benchmarks

Details for Benchmarks at 2022-09-13 20:12:06

Overall YJIT is 34.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.9% 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 5 197 75 197 20 197
hexapdf 5 15 20 15
liquid-render 5 162 75 162 20 162
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 68 75 68 20 68
erubi_rails 5 1053 75 1053 20 1053
fannkuchredux 5 15 57 15 20 15
lee 5 21 75 21 20 21
nbody 5 266 75 266 20 266
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 71 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 444 75 444 20 444
fib 5 313 75 313 20 313
getivar 5 467 75 467 20 467
keyword_args 5 381 75 381 20 381
respond_to 5 107 75 107 20 107
setivar 5 436 75 436 20 436
str_concat 5 422 75 422 20 422

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) 1070839 776720 131 1278 0 0% 0 0 0
hexapdf (click) 1185719 920412 682 8017 9 0% 0 0 0
liquid-render (click) 534711 401542 150 1701 2 0% 0 0 0
mail (click) 963575 669420 375 5658 17 0% 0 0 0
psych-load (click) 358519 262048 68 482 1 0% 0 0 0
railsbench (click) 2752055 1962935 1436 10004 16 0% 0 0 0
binarytrees (click) 175991 126852 13 58 0 0% 0 0 0
chunky_png (click) 400759 288991 88 1009 0 0% 0 0 0
erubi (click) 342839 250953 10 79 0 0% 0 0 0
erubi_rails (click) 2037751 1427582 300 2022 4 0% 0 0 0
fannkuchredux (click) 190839 137094 10 196 0 0% 0 0 0
lee (click) 398903 289642 58 634 0 0% 0 0 0
nbody (click) 187895 136471 12 171 0 0% 0 0 0
optcarrot (click) 532791 441672 207 3591 20 0% 0 0 0
rubykon (click) 330807 255985 144 1578 1 0% 0 0 0
30k_ifelse (click) 5665143 4347744 9265 57804 0 0% 0 0 0
30k_methods (click) 2208119 1655503 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175351 126099 10 49 0 0% 0 0 0
fib (click) 173623 125657 10 38 0 0% 0 0 0
getivar (click) 174135 127041 10 65 0 0% 0 0 0
keyword_args (click) 175287 126366 11 51 0 0% 0 0 0
respond_to (click) 176695 127203 10 64 0 0% 0 0 0
setivar (click) 175415 126614 10 38 0 0% 0 0 0
str_concat (click) 174071 126243 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.