YJIT Benchmarks

Details for Benchmarks at 2022-11-07 20:10:30

Overall YJIT is 33.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.2% 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 YJIT warmups YJIT iters
activerecord 5 204 5 204
hexapdf 5 15 5 15
liquid-render 5 175 5 175
mail 5 125 5 125
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 247 5 247
binarytrees 5 83 5 83
chunky_png 5 32 5 32
erubi 5 68 5 68
erubi_rails 5 1082 5 1082
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 243 5 243
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 21 5 21
cfunc_itself 5 469 5 469
fib 5 327 5 327
getivar 5 426 5 426
keyword_args 5 386 5 386
respond_to 5 710 5 710
setivar 5 400 5 400
str_concat 5 481 5 481

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) 2332588 2330109 23 349 6 1% 0 0 0
hexapdf (click) 1791282 1789207 817 10172 189 1% 0 0 0
liquid-render (click) 596651 593904 154 1794 34 1% 0 0 0
mail (click) 1342639 1342572 371 5113 176 3% 0 0 0
psych-load (click) 808860 806928 68 584 19 3% 0 0 0
railsbench (click) 5657098 5656935 1777 13845 483 3% 0 0 0
ruby-lsp (click) 5623418 5620643 6423 41549 1520 3% 12654 0 0
binarytrees (click) 130426 127888 14 89 4 4% 0 0 0
chunky_png (click) 829304 828439 87 1123 31 2% 0 0 0
erubi (click) 737989 737479 11 97 4 4% 0 0 0
erubi_rails (click) 4752298 4751018 327 2598 111 4% 0 0 0
etanni (click) 132644 132076 11 57 4 7% 0 0 0
fannkuchredux (click) 142459 141267 11 219 4 1% 0 0 0
lee (click) 830140 829001 77 759 25 3% 0 0 0
nbody (click) 143595 142045 13 198 6 3% 0 0 0
optcarrot (click) 564934 564902 201 4024 93 2% 0 0 0
rubykon (click) 280872 279909 143 1595 32 2% 0 0 0
30k_ifelse (click) 5421825 5420885 9266 57146 4 0% 0 0 0
30k_methods (click) 2090341 2089183 5785 19375 4 0% 0 0 0
cfunc_itself (click) 128330 126281 11 72 4 5% 0 0 0
fib (click) 126876 125394 11 61 4 6% 0 0 0
getivar (click) 128947 127370 11 88 4 4% 0 0 0
keyword_args (click) 129123 126792 12 74 4 5% 0 0 0
respond_to (click) 121352 119290 11 88 5 5% 0 0 0
setivar (click) 129114 126821 11 61 4 6% 0 0 0
str_concat (click) 128573 126924 13 87 6 6% 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.