YJIT Benchmarks

Details for Benchmarks at 2022-07-31 05:14:21

Overall YJIT is 33.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 24.4% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 128 75 128 20 128
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 62 75 62 20 62
erubi_rails 5 1007 75 1007 20 1007
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 35 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 446 75 446 20 446
fib 5 315 75 315 20 315
getivar 5 611 75 611 20 611
keyword_args 5 377 75 377 20 377
respond_to 5 104 75 104 20 104
setivar 5 962 75 962 20 962
str_concat 5 467 75 467 20 467

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) 1035611 779646 131 1264 0 0% 0 0 0
hexapdf (click) 1150747 925327 682 8014 9 0% 0 0 0
liquid-render (click) 518491 403971 150 1671 2 0% 0 0 0
mail (click) 922523 665614 374 5549 17 0% 0 0 0
psych-load (click) 348059 263768 68 482 1 0% 0 0 0
railsbench (click) 2654363 1967044 1436 10009 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 386971 289411 88 998 0 0% 0 0 0
erubi (click) 323547 246809 10 79 0 0% 0 0 0
erubi_rails (click) 1962779 1430531 300 2026 4 0% 0 0 0
fannkuchredux (click) 186011 138504 10 188 0 0% 0 0 0
lee (click) 385819 291379 58 632 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) 321307 256707 144 1573 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) 169179 126755 10 38 0 0% 0 0 0
getivar (click) 170907 128842 10 65 0 0% 0 0 0
keyword_args (click) 171547 127788 11 51 0 0% 0 0 0
respond_to (click) 172379 128305 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170843 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.