YJIT Benchmarks

Details for Benchmarks at 2022-08-15 20:14:29

Overall YJIT is 34.4% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 60 75 60 20 60
chunky_png 5 30 75 30 20 30
erubi 5 62 75 62 20 62
erubi_rails 5 1027 75 1027 20 1027
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 263 75 263 20 263
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 5 430 75 430 20 430
fib 5 315 75 315 20 315
getivar 5 619 75 619 20 619
keyword_args 5 366 75 366 20 366
respond_to 5 108 75 108 20 108
setivar 5 992 75 992 20 992
str_concat 5 446 75 446 20 446

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) 1034203 778077 131 1272 0 0% 0 0 0
hexapdf (click) 1153051 926153 682 8051 9 0% 0 0 0
liquid-render (click) 518747 403859 150 1681 2 0% 0 0 0
mail (click) 910619 657066 374 5422 17 0% 0 0 0
psych-load (click) 347227 263298 68 482 1 0% 0 0 0
railsbench (click) 2652059 1964429 1436 9985 16 0% 0 0 0
binarytrees (click) 171675 127963 13 58 0 0% 0 0 0
chunky_png (click) 384475 287599 88 991 0 0% 0 0 0
erubi (click) 322779 245939 10 79 0 0% 0 0 0
erubi_rails (click) 1960155 1427822 300 2026 4 0% 0 0 0
fannkuchredux (click) 185819 138016 10 196 0 0% 0 0 0
lee (click) 386075 291590 58 632 0 0% 0 0 0
nbody (click) 182043 137147 12 171 0 0% 0 0 0
optcarrot (click) 513883 442610 207 3588 20 0% 0 0 0
rubykon (click) 320859 256644 144 1575 1 0% 0 0 0
30k_ifelse (click) 5560475 4348420 9265 57804 0 0% 0 0 0
30k_methods (click) 2175643 1656882 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127021 10 49 0 0% 0 0 0
fib (click) 168859 126629 10 38 0 0% 0 0 0
getivar (click) 170587 128716 10 65 0 0% 0 0 0
keyword_args (click) 171227 127662 11 51 0 0% 0 0 0
respond_to (click) 172507 128475 10 64 0 0% 0 0 0
setivar (click) 170075 127240 10 38 0 0% 0 0 0
str_concat (click) 170075 127572 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.