YJIT Benchmarks

Details for Benchmarks at 2022-07-26 05:29:32

Overall YJIT is 34.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.5% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 161 75 161 20 161
mail 5 127 75 127 20 127
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 31 75 31 20 31
erubi 5 63 75 63 20 63
erubi_rails 5 1017 75 1017 20 1017
fannkuchredux 5 15 74 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 37 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 30 22 20 22
cfunc_itself 5 449 75 449 20 449
fib 5 315 75 315 20 315
getivar 5 608 75 608 20 608
keyword_args 5 374 75 374 20 374
respond_to 5 108 75 108 20 108
setivar 5 958 75 958 20 958
str_concat 5 495 75 495 20 495

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) 1034779 777795 131 1260 0 0% 0 0 0
hexapdf (click) 1151899 925655 682 7966 9 0% 0 0 0
liquid-render (click) 521435 405900 150 1681 2 0% 0 0 0
mail (click) 921883 664394 374 5528 17 0% 0 0 0
psych-load (click) 348891 264524 68 476 1 0% 0 0 0
railsbench (click) 2653787 1965302 1436 9947 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 387931 290458 88 1000 0 0% 0 0 0
erubi (click) 322075 245722 10 79 0 0% 0 0 0
erubi_rails (click) 1964827 1430473 300 2016 4 0% 0 0 0
fannkuchredux (click) 186011 138504 10 188 0 0% 0 0 0
lee (click) 386779 292145 58 630 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 321243 256928 144 1577 1 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657304 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127147 10 49 0 0% 0 0 0
fib (click) 168731 126459 10 38 0 0% 0 0 0
getivar (click) 170459 128546 10 65 0 0% 0 0 0
keyword_args (click) 171099 127492 11 51 0 0% 0 0 0
respond_to (click) 172891 128601 10 64 0 0% 0 0 0
setivar (click) 170395 127366 10 38 0 0% 0 0 0
str_concat (click) 170907 128069 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.