YJIT Benchmarks

Details for Benchmarks at 2022-05-08 19:12:50

Overall YJIT is 35.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.3% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
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 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 47 75 47 20 47
erubi_rails 5 946 75 946 20 946
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 267 75 267 20 267
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 319 75 319 20 319
getivar 5 769 75 769 20 769
keyword_args 5 372 75 372 20 372
respond_to 5 104 75 104 20 104
setivar 5 1839 75 1839 20 1839
str_concat 5 189 75 189 20 189

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) 1010011 750440 131 1229 0 0% 0 0 0
hexapdf (click) 1112987 872329 683 7683 10 0% 0 0 0
liquid-render (click) 514203 393956 150 1653 2 0% 0 0 0
mail (click) 891739 645712 375 5333 15 0% 0 0 0
psych-load (click) 339675 255527 68 457 1 0% 0 0 0
railsbench (click) 2618011 1910568 1435 9770 16 0% 0 0 0
binarytrees (click) 173211 129880 13 58 0 0% 0 0 0
chunky_png (click) 375835 281139 88 962 0 0% 0 0 0
discourse (click) 5875675 4353405 3186 25162 82 0% 2 0 0
erubi (click) 322267 242503 10 79 0 0% 0 0 0
erubi_rails (click) 1928411 1387439 300 1963 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 377883 283455 58 618 0 0% 0 0 0
nbody (click) 182683 137081 12 158 0 0% 0 0 0
optcarrot (click) 514139 442708 207 3571 20 0% 0 0 0
rubykon (click) 317787 250519 144 1528 1 0% 0 0 0
30k_ifelse (click) 5562267 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2178075 1658902 5784 19365 0 0% 0 0 0
cfunc_itself (click) 171739 128509 10 49 0 0% 0 0 0
fib (click) 170203 128117 10 38 0 0% 0 0 0
getivar (click) 171995 130628 10 65 0 0% 0 0 0
keyword_args (click) 172571 129150 11 51 0 0% 0 0 0
respond_to (click) 173851 129963 10 64 0 0% 0 0 0
setivar (click) 171931 129152 10 38 0 0% 0 0 0
str_concat (click) 171419 129176 12 62 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.