YJIT Benchmarks

Details for Benchmarks at 2022-07-27 20:14:22

Overall YJIT is 35.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.3% 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 5 159 75 159 20 159
mail 5 128 75 128 20 128
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 30 75 30 20 30
erubi 5 63 75 63 20 63
erubi_rails 5 1031 75 1031 20 1031
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 247 75 247 20 247
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 449 75 449 20 449
fib 5 314 75 314 20 314
getivar 5 612 75 612 20 612
keyword_args 5 378 75 378 20 378
respond_to 5 107 75 107 20 107
setivar 5 960 75 960 20 960
str_concat 5 465 75 465 20 465

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) 1038811 780390 131 1266 0 0% 0 0 0
hexapdf (click) 1151003 924343 682 7963 9 0% 0 0 0
liquid-render (click) 521883 406226 150 1702 2 0% 0 0 0
mail (click) 922651 664128 374 5546 17 0% 0 0 0
psych-load (click) 347739 263475 68 474 1 0% 0 0 0
railsbench (click) 2656027 1966480 1436 9955 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 387099 289527 88 1000 0 0% 0 0 0
erubi (click) 323547 246749 10 79 0 0% 0 0 0
erubi_rails (click) 1962011 1428695 300 2006 4 0% 0 0 0
fannkuchredux (click) 186075 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) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 324187 259244 144 1598 1 0% 0 0 0
30k_ifelse (click) 5560795 4348546 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) 170971 128842 10 65 0 0% 0 0 0
keyword_args (click) 171611 127788 11 51 0 0% 0 0 0
respond_to (click) 172827 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.