YJIT Benchmarks

Details for Benchmarks at 2022-02-12 07:11:54

Overall YJIT is 32.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.6% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 176 20 176 75 176 20 176
hexapdf 5 15 20 15 20 15
liquid-render 5 154 20 154 75 154 20 154
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 34 20 34 75 34 20 34
erubi 5 48 20 48 75 48 20 48
erubi_rails 5 969 20 969 75 969 20 969
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 22 20 22 75 22 20 22
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 38 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 5 447 20 447 75 447 20 447
fib 5 320 20 320 75 320 20 320
getivar 5 769 20 769 75 769 20 769
keyword_args 5 377 20 377 75 377 20 377
respond_to 5 108 20 108 75 108 20 108
setivar 5 1663 20 1663 75 1663 20 1663

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) 999569 766698 185 1199 0 0% 0 0 0
hexapdf (click) 1119121 916704 600 8173 613 7% 0 0 321
liquid-render (click) 492241 391523 143 1533 95 6% 0 0 1
mail (click) 901265 675434 324 5513 125 2% 0 0 39
psych-load (click) 337233 267066 59 434 1 0% 0 0 0
railsbench (click) 2539281 1935635 1297 9369 268 2% 0 0 26
binarytrees (click) 151697 116253 11 59 0 0% 0 0 0
discourse (click) 22700625 11400910 3134 285442 261936 91% 2 0 133
erubi (click) 330449 261910 10 79 0 0% 0 0 0
erubi_rails (click) 1910545 1439113 262 1875 18 0% 0 0 3
fannkuchredux (click) 165009 126647 8 189 0 0% 0 0 0
lee (click) 378065 297978 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) 297361 240817 140 1598 1 0% 0 0 0
30k_ifelse (click) 5540817 4336602 9263 57805 0 0% 0 0 0
30k_methods (click) 2155985 1645064 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150225 114907 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) 150609 115219 9 52 0 0% 0 0 0
respond_to (click) 151889 116032 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.