YJIT Benchmarks

Details for Benchmarks at 2022-05-14 07:15:15

Overall YJIT is 32.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.6% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 188 75 188 20 188
hexapdf 5 15 20 15
liquid-render 5 135 75 135 20 135
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 47 75 47 20 47
erubi_rails 5 775 75 775 20 775
fannkuchredux 5 15 72 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 436 75 436 20 436
fib 5 320 75 320 20 320
getivar 5 762 75 762 20 762
keyword_args 5 358 75 358 20 358
respond_to 5 103 75 103 20 103
setivar 5 1859 75 1859 20 1859
str_concat 5 195 75 195 20 195

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) 1016795 756065 131 1272 0 0% 0 0 0
hexapdf (click) 1119835 878882 682 7752 10 0% 0 0 0
liquid-render (click) 502683 385528 150 1524 2 0% 0 0 0
mail (click) 937947 677335 374 5784 15 0% 0 0 0
psych-load (click) 339803 255297 68 462 1 0% 0 0 0
railsbench (click) 2636187 1925708 1436 9826 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 376475 281686 88 968 0 0% 0 0 0
discourse (click) 5955739 4417510 3195 25515 84 0% 2 0 0
erubi (click) 319387 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1949467 1402233 300 1987 4 0% 0 0 0
fannkuchredux (click) 185883 139427 10 188 0 0% 0 0 0
lee (click) 378267 283852 58 622 0 0% 0 0 0
nbody (click) 181339 135930 12 158 0 0% 0 0 0
optcarrot (click) 512539 441179 207 3571 20 0% 0 0 0
rubykon (click) 319579 252064 144 1561 1 0% 0 0 0
30k_ifelse (click) 5560411 4348757 9265 57804 0 0% 0 0 0
30k_methods (click) 2176091 1657515 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127358 10 49 0 0% 0 0 0
fib (click) 168859 126966 10 38 0 0% 0 0 0
getivar (click) 170651 129477 10 65 0 0% 0 0 0
keyword_args (click) 171163 127864 11 51 0 0% 0 0 0
respond_to (click) 172507 128812 10 64 0 0% 0 0 0
setivar (click) 170587 128001 10 38 0 0% 0 0 0
str_concat (click) 170587 128321 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.