YJIT Benchmarks

Details for Benchmarks at 2022-03-26 07:13:07

Overall YJIT is 31.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.8% 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 5 180 75 180 20 180
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
discourse 5 36 75 36 20 36
erubi 5 47 75 47 20 47
erubi_rails 5 975 75 975 20 975
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 283 75 283 20 283
optcarrot 5 15 75 15 20 15
rubykon 5 15 23 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 442 75 442 20 442
fib 5 320 75 320 20 320
getivar 5 804 75 804 20 804
keyword_args 5 365 75 365 20 365
respond_to 5 103 75 103 20 103
setivar 5 1807 75 1807 20 1807

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) 988497 758689 185 1199 0 0% 0 0 0
hexapdf (click) 1108753 907373 599 8162 613 7% 0 0 320
liquid-render (click) 487505 386326 143 1505 95 6% 0 0 1
mail (click) 875537 654660 325 5332 125 2% 0 0 39
psych-load (click) 331153 261768 59 434 1 0% 0 0 0
railsbench (click) 2529553 1927999 1297 9308 268 2% 0 0 26
binarytrees (click) 152785 117243 11 59 0 0% 0 0 0
chunky_png (click) 354705 275132 85 865 0 0% 0 0 0
discourse (click) 23303057 11639460 3134 294968 271385 92% 2 0 133
erubi (click) 322129 255098 10 79 0 0% 0 0 0
erubi_rails (click) 1907345 1436722 262 1890 18 0% 0 0 3
fannkuchredux (click) 158737 120555 8 189 0 0% 0 0 0
lee (click) 372753 293428 45 587 69 11% 0 0 12
nbody (click) 153681 116769 10 159 0 0% 0 0 0
optcarrot (click) 489361 429668 198 3576 20 0% 0 0 0
rubykon (click) 284817 229002 140 1522 1 0% 0 0 0
30k_ifelse (click) 5542353 4337896 9263 57805 0 0% 0 0 0
30k_methods (click) 2157009 1646029 5782 19362 0 0% 0 0 0
cfunc_itself (click) 151761 116201 8 50 0 0% 0 0 0
fib (click) 150033 115235 8 39 0 0% 0 0 0
getivar (click) 143761 110605 8 66 0 0% 0 0 0
keyword_args (click) 152337 116268 9 52 0 0% 0 0 0
respond_to (click) 153937 117655 8 65 0 0% 0 0 0
setivar (click) 143761 109129 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.