YJIT Benchmarks

Details for Benchmarks at 2022-04-26 19:17:44

Overall YJIT is 30.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.6% 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 5 183 75 183 20 183
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 30 75 30 20 30
discourse 5 38 75 38 20 38
erubi 5 47 75 47 20 47
erubi_rails 5 975 75 975 20 975
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 28 22 20 22
cfunc_itself 5 440 75 440 20 440
fib 5 320 75 320 20 320
getivar 5 767 75 767 20 767
keyword_args 5 355 75 355 20 355
respond_to 5 106 75 106 20 106
setivar 5 1788 75 1788 20 1788

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) 990993 812884 185 1185 0 0% 0 0 0
hexapdf (click) 1097425 921345 599 7873 427 5% 0 0 321
liquid-render (click) 500177 422459 143 1500 92 6% 0 0 5
mail (click) 846289 656769 324 4977 96 1% 0 0 111
psych-load (click) 341329 286443 59 434 1 0% 0 0 0
railsbench (click) 2597009 2102901 1297 9385 224 2% 0 0 26
binarytrees (click) 168913 138452 11 58 0 0% 0 0 0
chunky_png (click) 374609 308682 85 857 0 0% 0 0 0
discourse (click) 6297105 5648088 3177 27392 3229 11% 2 0 140
erubi (click) 329169 276912 10 79 0 0% 0 0 0
erubi_rails (click) 1955665 1594309 262 1872 12 0% 0 0 3
fannkuchredux (click) 183441 149524 8 188 0 0% 0 0 0
lee (click) 378833 315947 45 582 68 11% 0 0 13
nbody (click) 178193 145653 10 158 0 0% 0 0 0
optcarrot (click) 505169 449769 198 3576 20 0% 0 0 0
rubykon (click) 309009 257991 140 1523 1 0% 0 0 0
30k_ifelse (click) 5558929 4359248 9263 57806 0 0% 0 0 0
30k_methods (click) 2173905 1667612 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166865 136752 8 49 0 0% 0 0 0
fib (click) 166737 137063 8 38 0 0% 0 0 0
getivar (click) 167441 137686 8 66 0 0% 0 0 0
keyword_args (click) 169041 138096 9 51 0 0% 0 0 0
respond_to (click) 169041 138206 8 64 0 0% 0 0 0
setivar (click) 168465 138098 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.