YJIT Benchmarks

Details for Benchmarks at 2022-04-10 19:13:36

Overall YJIT is 32.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.3% 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.

Want Raw Graphs and CSV?

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 5 122 75 122 20 122
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 30 75 30 20 30
discourse 5 35 75 35 20 35
erubi 5 46 75 46 20 46
erubi_rails 5 974 75 974 20 974
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 27 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 21 29 21 20 21
cfunc_itself 5 445 75 445 20 445
fib 5 320 75 320 20 320
getivar 5 771 75 771 20 771
keyword_args 5 377 75 377 20 377
respond_to 5 109 75 109 20 109
setivar 5 1670 75 1670 20 1670

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) 990289 812060 185 1185 0 0% 0 0 0
hexapdf (click) 1098577 922386 599 7880 427 5% 0 0 321
liquid-render (click) 501009 422612 143 1502 92 6% 0 0 5
mail (click) 845265 656121 324 4968 96 1% 0 0 111
psych-load (click) 341073 285928 59 434 1 0% 0 0 0
railsbench (click) 2595729 2102370 1297 9358 224 2% 0 0 26
binarytrees (click) 168401 138123 11 58 0 0% 0 0 0
chunky_png (click) 374801 308800 85 857 0 0% 0 0 0
discourse (click) 6268817 5626709 3140 27160 3219 11% 2 0 140
erubi (click) 328401 276068 10 79 0 0% 0 0 0
erubi_rails (click) 1956241 1596823 262 1865 12 0% 0 0 3
fannkuchredux (click) 182161 148821 8 188 0 0% 0 0 0
lee (click) 378257 315221 45 582 68 11% 0 0 13
nbody (click) 178961 146027 10 158 0 0% 0 0 0
optcarrot (click) 505425 451283 198 3575 20 0% 0 0 0
rubykon (click) 309521 257710 140 1520 1 0% 0 0 0
30k_ifelse (click) 5558161 4358874 9263 57806 0 0% 0 0 0
30k_methods (click) 2172625 1666909 5782 19361 0 0% 0 0 0
cfunc_itself (click) 167377 137081 8 49 0 0% 0 0 0
fib (click) 164945 134801 8 39 0 0% 0 0 0
getivar (click) 166993 138449 8 66 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) 168273 137676 8 39 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.