YJIT Benchmarks

Details for Benchmarks at 2022-02-13 19:11:32

Overall YJIT is 31.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.8% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 175 20 175 75 175 20 175
hexapdf 5 15 20 15 20 15
liquid-render 5 155 20 155 75 155 20 155
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 47 20 47 75 47 20 47
erubi_rails 5 957 20 957 75 957 20 957
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 55 20 55 75 55 20 55
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 452 20 452 75 452 20 452
fib 5 320 20 320 75 320 20 320
getivar 5 769 20 769 75 769 20 769
keyword_args 5 369 20 369 75 369 20 369
respond_to 5 108 20 108 75 108 20 108
setivar 5 1665 20 1665 75 1665 20 1665

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) 999441 766733 185 1199 0 0% 0 0 0
hexapdf (click) 1118609 916302 599 8165 613 7% 0 0 321
liquid-render (click) 492625 392280 143 1544 95 6% 0 0 1
mail (click) 881361 661144 324 5309 125 2% 0 0 39
psych-load (click) 337233 267066 59 434 1 0% 0 0 0
railsbench (click) 2537041 1934229 1297 9335 268 2% 0 0 26
binarytrees (click) 151761 116278 11 59 0 0% 0 0 0
discourse (click) 22670417 11373954 3106 285091 261794 91% 2 0 133
erubi (click) 329937 261581 10 79 0 0% 0 0 0
erubi_rails (click) 1912593 1440840 262 1903 18 0% 0 0 3
fannkuchredux (click) 165521 126976 8 189 0 0% 0 0 0
lee (click) 377617 297705 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) 293137 236618 140 1534 1 0% 0 0 0
30k_ifelse (click) 5540305 4336273 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) 148305 114186 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.