YJIT Benchmarks

Details for Benchmarks at 2022-07-24 20:14:09

Overall YJIT is 33.7% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 148 75 148 20 148
mail 5 128 75 128 20 128
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 31 75 31 20 31
erubi 5 62 75 62 20 62
erubi_rails 5 1025 75 1025 20 1025
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 441 75 441 20 441
fib 5 315 75 315 20 315
getivar 5 612 75 612 20 612
keyword_args 5 376 75 376 20 376
respond_to 5 104 75 104 20 104
setivar 5 956 75 956 20 956
str_concat 5 476 75 476 20 476

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) 1036251 778850 131 1244 0 0% 0 0 0
hexapdf (click) 1151323 924905 683 7969 9 0% 0 0 0
liquid-render (click) 516251 401634 150 1643 2 0% 0 0 0
mail (click) 912283 658421 374 5426 17 0% 0 0 0
psych-load (click) 347803 263475 68 474 1 0% 0 0 0
railsbench (click) 2651867 1964318 1436 9927 16 0% 0 0 0
binarytrees (click) 172251 128374 13 58 0 0% 0 0 0
chunky_png (click) 387483 289912 88 1002 0 0% 0 0 0
erubi (click) 323611 246749 10 79 0 0% 0 0 0
erubi_rails (click) 1964955 1430690 300 2015 4 0% 0 0 0
fannkuchredux (click) 186011 138504 10 188 0 0% 0 0 0
lee (click) 385819 291264 58 630 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 513755 442440 207 3588 20 0% 0 0 0
rubykon (click) 321627 257051 144 1578 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) 170267 126851 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) 172827 128601 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170395 127773 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.