YJIT Benchmarks

Details for Benchmarks at 2022-04-11 07:15:52

Overall YJIT is 33.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.5% 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 5 182 75 182 20 182
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 122 75 122 20 122
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 60 75 60 20 60
chunky_png 5 30 75 30 20 30
discourse 5 38 75 38 20 38
erubi 5 47 75 47 20 47
erubi_rails 5 927 75 927 20 927
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 426 75 426 20 426
fib 5 319 75 319 20 319
getivar 5 770 75 770 20 770
keyword_args 5 377 75 377 20 377
respond_to 5 109 75 109 20 109
setivar 5 1767 75 1767 20 1767

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) 991505 813343 185 1185 0 0% 0 0 0
hexapdf (click) 1099793 923522 599 7894 427 5% 0 0 321
liquid-render (click) 498897 421491 143 1482 92 6% 0 0 5
mail (click) 845265 656121 324 4968 96 1% 0 0 111
psych-load (click) 341841 286772 59 434 1 0% 0 0 0
railsbench (click) 2594385 2100734 1297 9349 224 2% 0 0 26
binarytrees (click) 169681 138826 11 58 0 0% 0 0 0
chunky_png (click) 376337 309841 85 864 0 0% 0 0 0
discourse (click) 6252113 5616660 3128 26998 3261 12% 2 0 140
erubi (click) 329681 277241 10 79 0 0% 0 0 0
erubi_rails (click) 1957649 1597120 262 1879 12 0% 0 0 3
fannkuchredux (click) 182289 148934 8 188 0 0% 0 0 0
lee (click) 378641 315849 45 582 68 11% 0 0 13
nbody (click) 179473 146356 10 158 0 0% 0 0 0
optcarrot (click) 505425 451283 198 3575 20 0% 0 0 0
rubykon (click) 310545 258882 140 1531 1 0% 0 0 0
30k_ifelse (click) 5557457 4358447 9263 57804 0 0% 0 0 0
30k_methods (click) 2173137 1667238 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166865 136752 8 49 0 0% 0 0 0
fib (click) 164945 134801 8 39 0 0% 0 0 0
getivar (click) 167185 138871 8 65 0 0% 0 0 0
keyword_args (click) 168081 137300 9 52 0 0% 0 0 0
respond_to (click) 170321 138909 8 64 0 0% 0 0 0
setivar (click) 167697 137724 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.