YJIT Benchmarks

Details for Benchmarks at 2022-06-07 20:18:24

Overall YJIT is 37.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.4% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 138 75 138 20 138
mail 5 108 75 108 20 108
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 45 75 45 20 45
erubi_rails 5 797 75 797 20 797
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 276 75 276 20 276
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 319 75 319 20 319
getivar 5 759 75 759 20 759
keyword_args 5 379 75 379 20 379
respond_to 5 105 75 105 20 105
setivar 5 1860 75 1860 20 1860
str_concat 5 201 75 201 20 201

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) 1016155 755703 131 1251 0 0% 0 0 0
hexapdf (click) 1120283 879398 682 7751 9 0% 0 0 0
liquid-render (click) 510427 390906 150 1580 2 0% 0 0 0
mail (click) 909275 657230 374 5501 15 0% 0 0 0
psych-load (click) 340379 255551 68 462 1 0% 0 0 0
railsbench (click) 2621531 1917055 1436 9855 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 381403 284854 88 1005 0 0% 0 0 0
discourse (click) 5932891 4404438 3197 25553 85 0% 2 0 0
erubi (click) 319515 242811 10 79 0 0% 0 0 0
erubi_rails (click) 1929115 1390277 300 1992 4 0% 0 0 0
fannkuchredux (click) 188123 141143 10 188 0 0% 0 0 0
lee (click) 378331 283889 58 622 0 0% 0 0 0
nbody (click) 183707 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 320411 252595 145 1548 1 0% 0 0 0
30k_ifelse (click) 5563419 4350867 9265 57806 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171099 128682 10 38 0 0% 0 0 0
getivar (click) 172955 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174875 130528 10 64 0 0% 0 0 0
setivar (click) 172827 129717 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 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.