YJIT Benchmarks

Details for Benchmarks at 2022-08-31 05:43:39

Overall YJIT is 33.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.9% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 126 75 126 20 126
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 62 75 62 20 62
chunky_png 5 29 75 29 20 29
erubi 5 60 75 60 20 60
erubi_rails 5 1002 75 1002 20 1002
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 259 75 259 20 259
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 51 66 51 20 51
30k_methods 5 24 23 24 20 24
cfunc_itself 5 426 75 426 20 426
fib 5 300 75 300 20 300
getivar 5 613 75 613 20 613
keyword_args 5 357 75 357 20 357
respond_to 5 99 75 99 20 99
setivar 5 982 75 982 20 982
str_concat 5 418 75 418 20 418

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) 1122947 781410 131 1275 0 0% 0 0 0
hexapdf (click) 1252675 924383 682 8019 9 0% 0 0 0
liquid-render (click) 559491 401323 150 1678 2 0% 0 0 0
mail (click) 990275 661468 374 5519 17 0% 0 0 0
psych-load (click) 376579 264142 68 480 1 0% 0 0 0
railsbench (click) 2868867 1963756 1436 9948 16 0% 0 0 0
binarytrees (click) 185027 128079 13 58 0 0% 0 0 0
chunky_png (click) 419075 290482 88 1006 0 0% 0 0 0
erubi (click) 358787 252507 10 79 0 0% 0 0 0
erubi_rails (click) 2130051 1431490 300 2002 4 0% 0 0 0
fannkuchredux (click) 199683 137519 10 196 0 0% 0 0 0
lee (click) 416835 290541 58 632 0 0% 0 0 0
nbody (click) 196739 136946 12 171 0 0% 0 0 0
optcarrot (click) 563203 442297 207 3588 20 0% 0 0 0
rubykon (click) 347267 256342 144 1571 1 0% 0 0 0
30k_ifelse (click) 5920835 4348547 9265 57804 0 0% 0 0 0
30k_methods (click) 2288323 1657059 5784 19361 0 0% 0 0 0
cfunc_itself (click) 183363 126524 10 49 0 0% 0 0 0
fib (click) 181699 126132 10 38 0 0% 0 0 0
getivar (click) 183619 128219 10 65 0 0% 0 0 0
keyword_args (click) 184131 127165 11 51 0 0% 0 0 0
respond_to (click) 186179 128356 10 64 0 0% 0 0 0
setivar (click) 183683 127417 10 38 0 0% 0 0 0
str_concat (click) 183363 127371 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.