YJIT Benchmarks

Details for Benchmarks at 2022-08-16 05:14:59

Overall YJIT is 35.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.8% 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 5 195 75 195 20 195
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 61 75 61 20 61
chunky_png 5 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1035 75 1035 20 1035
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 34 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 23 30 23 20 23
cfunc_itself 5 430 75 430 20 430
fib 5 315 75 315 20 315
getivar 5 619 75 619 20 619
keyword_args 5 368 75 368 20 368
respond_to 5 108 75 108 20 108
setivar 5 991 75 991 20 991
str_concat 5 452 75 452 20 452

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) 1037723 780620 131 1295 0 0% 0 0 0
hexapdf (click) 1149915 923589 682 8012 9 0% 0 0 0
liquid-render (click) 521179 405913 150 1709 2 0% 0 0 0
mail (click) 897115 647805 374 5304 17 0% 0 0 0
psych-load (click) 347995 264036 68 480 1 0% 0 0 0
railsbench (click) 2658843 1968351 1436 10047 16 0% 0 0 0
binarytrees (click) 171611 127963 13 58 0 0% 0 0 0
chunky_png (click) 385051 288171 88 990 0 0% 0 0 0
erubi (click) 322779 245914 10 79 0 0% 0 0 0
erubi_rails (click) 1961051 1428196 300 2011 4 0% 0 0 0
fannkuchredux (click) 185371 137720 10 196 0 0% 0 0 0
lee (click) 385179 290709 58 632 0 0% 0 0 0
nbody (click) 182491 137443 12 171 0 0% 0 0 0
optcarrot (click) 513883 442610 207 3588 20 0% 0 0 0
rubykon (click) 320027 256436 144 1565 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) 169947 126725 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) 170523 127868 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.