YJIT Benchmarks

Details for Benchmarks at 2022-02-11 07:11:55

Overall YJIT is 31.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.0% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 178 20 178 75 178 20 178
hexapdf 5 15 20 15 20 15
liquid-render 5 153 20 153 75 153 20 153
mail 5 122 20 122 75 122 20 122
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 75 20 75 75 75 20 75
discourse 5 36 20 36 75 36 20 36
erubi 5 48 20 48 75 48 20 48
erubi_rails 5 952 20 952 75 952 20 952
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 21 20 21 75 21 20 21
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 39 15 20 15
30k_ifelse 5 56 20 56 75 56 20 56
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 446 20 446 75 446 20 446
fib 5 320 20 320 75 320 20 320
getivar 5 771 20 771 75 771 20 771
keyword_args 5 377 20 377 75 377 20 377
respond_to 5 107 20 107 75 107 20 107
setivar 5 1683 20 1683 75 1683 20 1683

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) 999633 766853 185 1203 0 0% 0 0 0
hexapdf (click) 1118673 916370 600 8167 613 7% 0 0 321
liquid-render (click) 488913 388900 143 1507 95 6% 0 0 1
mail (click) 881617 661397 324 5307 125 2% 0 0 39
psych-load (click) 336721 266737 59 434 1 0% 0 0 0
railsbench (click) 2535889 1933669 1297 9333 268 2% 0 0 26
binarytrees (click) 151249 115949 11 59 0 0% 0 0 0
discourse (click) 23252881 11601074 3094 294483 271296 92% 2 0 133
erubi (click) 330449 261910 10 79 0 0% 0 0 0
erubi_rails (click) 1910353 1438625 262 1881 18 0% 0 0 3
fannkuchredux (click) 165521 126976 8 189 0 0% 0 0 0
lee (click) 377105 297376 45 587 69 11% 0 0 12
nbody (click) 161041 123479 10 159 0 0% 0 0 0
optcarrot (click) 488273 429109 198 3576 20 0% 0 0 0
rubykon (click) 292881 236717 140 1538 1 0% 0 0 0
30k_ifelse (click) 5540817 4336602 9263 57805 0 0% 0 0 0
30k_methods (click) 2155601 1644848 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149713 114578 8 50 0 0% 0 0 0
fib (click) 148817 114515 8 39 0 0% 0 0 0
getivar (click) 150033 116697 8 66 0 0% 0 0 0
keyword_args (click) 151121 115548 9 52 0 0% 0 0 0
respond_to (click) 152401 116361 8 65 0 0% 0 0 0
setivar (click) 150033 115221 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.