YJIT Benchmarks

Details for Benchmarks at 2022-04-14 07:14:16

Overall YJIT is 33.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.4% 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 5 184 75 184 20 184
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 29 75 29 20 29
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 963 75 963 20 963
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 448 75 448 20 448
fib 5 320 75 320 20 320
getivar 5 777 75 777 20 777
keyword_args 5 372 75 372 20 372
respond_to 5 110 75 110 20 110
setivar 5 1905 75 1905 20 1905

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) 990993 812949 185 1185 0 0% 0 0 0
hexapdf (click) 1099153 923051 600 7901 430 5% 0 0 321
liquid-render (click) 503697 424697 143 1534 92 5% 0 0 5
mail (click) 843793 655267 324 4961 96 1% 0 0 111
psych-load (click) 341649 286654 59 434 1 0% 0 0 0
railsbench (click) 2594769 2102402 1297 9353 224 2% 0 0 26
binarytrees (click) 168401 138123 11 58 0 0% 0 0 0
chunky_png (click) 376273 309730 85 868 0 0% 0 0 0
discourse (click) 6250833 5613496 3128 26933 3198 11% 2 0 140
erubi (click) 329233 275875 10 79 0 0% 0 0 0
erubi_rails (click) 1958289 1598157 262 1892 12 0% 0 0 3
fannkuchredux (click) 183441 149524 8 188 0 0% 0 0 0
lee (click) 378321 315618 45 582 68 11% 0 0 13
nbody (click) 178961 146027 10 158 0 0% 0 0 0
optcarrot (click) 504401 449395 198 3576 20 0% 0 0 0
rubykon (click) 310417 258523 140 1525 1 0% 0 0 0
30k_ifelse (click) 5558161 4358874 9263 57806 0 0% 0 0 0
30k_methods (click) 2173137 1667238 5782 19361 0 0% 0 0 0
cfunc_itself (click) 167377 137081 8 49 0 0% 0 0 0
fib (click) 165969 136689 8 38 0 0% 0 0 0
getivar (click) 167185 138871 8 65 0 0% 0 0 0
keyword_args (click) 167761 137393 9 51 0 0% 0 0 0
respond_to (click) 170321 138909 8 64 0 0% 0 0 0
setivar (click) 168465 138098 8 38 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.