YJIT Benchmarks

Details for Benchmarks at 2022-04-25 07:13:24

Overall YJIT is 31.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.2% 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 5 186 75 186 20 186
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 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 975 75 975 20 975
fannkuchredux 5 15 73 15 20 15
lee 5 22 75 22 20 22
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 28 22 20 22
cfunc_itself 5 452 75 452 20 452
fib 5 320 75 320 20 320
getivar 5 772 75 772 20 772
keyword_args 5 379 75 379 20 379
respond_to 5 106 75 106 20 106
setivar 5 1874 75 1874 20 1874

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) 989585 811949 185 1185 0 0% 0 0 0
hexapdf (click) 1099473 923293 599 7896 427 5% 0 0 321
liquid-render (click) 494737 416912 143 1502 92 6% 0 0 5
mail (click) 847121 657409 324 4982 96 1% 0 0 111
psych-load (click) 341841 286772 59 434 1 0% 0 0 0
railsbench (click) 2597457 2103315 1297 9376 224 2% 0 0 26
binarytrees (click) 168401 138123 11 58 0 0% 0 0 0
chunky_png (click) 375313 309129 85 857 0 0% 0 0 0
discourse (click) 6216913 5581248 3102 26643 3103 11% 2 0 140
erubi (click) 329681 277241 10 79 0 0% 0 0 0
erubi_rails (click) 1955345 1595120 262 1870 12 0% 0 0 3
fannkuchredux (click) 181137 146933 8 189 0 0% 0 0 0
lee (click) 378513 315736 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) 309137 257719 140 1515 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) 166737 137063 8 38 0 0% 0 0 0
getivar (click) 168465 139574 8 65 0 0% 0 0 0
keyword_args (click) 168273 137722 9 51 0 0% 0 0 0
respond_to (click) 169169 138319 8 64 0 0% 0 0 0
setivar (click) 166161 135507 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.