YJIT Benchmarks

Details for Benchmarks at 2022-06-13 20:15:18

Overall YJIT is 33.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.6% 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 5 155 75 155 20 155
mail 5 125 75 125 20 125
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 41 75 41 20 41
erubi 5 49 75 49 20 49
erubi_rails 5 1004 75 1004 20 1004
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 412 75 412 20 412
fib 5 319 75 319 20 319
getivar 5 763 75 763 20 763
keyword_args 5 373 75 373 20 373
respond_to 5 106 75 106 20 106
setivar 5 1842 75 1842 20 1842
str_concat 5 194 75 194 20 194

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) 1016411 756227 131 1254 0 0% 0 0 0
hexapdf (click) 1119963 879181 682 7753 9 0% 0 0 0
liquid-render (click) 513563 393815 150 1632 2 0% 0 0 0
mail (click) 928667 670486 374 5681 15 0% 0 0 0
psych-load (click) 339675 255124 68 457 1 0% 0 0 0
railsbench (click) 2622939 1918108 1436 9851 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 381211 284812 88 1009 0 0% 0 0 0
discourse (click) 5930843 4404687 3195 25513 85 0% 2 0 0
erubi (click) 319515 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1927515 1389323 300 1960 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 378395 283802 58 622 0 0% 0 0 0
nbody (click) 183579 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 318747 251064 144 1528 1 0% 0 0 0
30k_ifelse (click) 5563291 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171355 128213 10 49 0 0% 0 0 0
fib (click) 171099 128682 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174747 130528 10 64 0 0% 0 0 0
setivar (click) 172955 129717 10 38 0 0% 0 0 0
str_concat (click) 171547 129176 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.