YJIT Benchmarks

Details for Benchmarks at 2022-08-04 20:15:30

Overall YJIT is 34.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.6% 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.

Want Raw Graphs and CSV?

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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 128 75 128 20 128
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 31 75 31 20 31
erubi 5 62 75 62 20 62
erubi_rails 5 1048 75 1048 20 1048
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 430 75 430 20 430
fib 5 314 75 314 20 314
getivar 5 613 75 613 20 613
keyword_args 5 379 75 379 20 379
respond_to 5 100 75 100 20 100
setivar 5 954 75 954 20 954
str_concat 5 439 75 439 20 439

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) 1034203 778015 131 1273 0 0% 0 0 0
hexapdf (click) 1150107 923957 682 8014 9 0% 0 0 0
liquid-render (click) 516443 401419 150 1667 2 0% 0 0 0
mail (click) 910747 657289 374 5423 17 0% 0 0 0
psych-load (click) 347419 263273 68 482 1 0% 0 0 0
railsbench (click) 2661787 1969927 1436 10067 16 0% 0 0 0
binarytrees (click) 171931 128248 13 58 0 0% 0 0 0
chunky_png (click) 383259 286585 88 998 0 0% 0 0 0
erubi (click) 322843 245939 10 79 0 0% 0 0 0
erubi_rails (click) 1960987 1428403 300 2026 4 0% 0 0 0
fannkuchredux (click) 185755 138378 10 188 0 0% 0 0 0
lee (click) 385243 290684 58 632 0 0% 0 0 0
nbody (click) 182555 137443 12 171 0 0% 0 0 0
optcarrot (click) 513947 442610 207 3588 20 0% 0 0 0
rubykon (click) 321691 257221 144 1578 1 0% 0 0 0
30k_ifelse (click) 5560987 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2176155 1657178 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170459 127021 10 49 0 0% 0 0 0
fib (click) 168923 126629 10 38 0 0% 0 0 0
getivar (click) 170651 128716 10 65 0 0% 0 0 0
keyword_args (click) 171291 127662 11 51 0 0% 0 0 0
respond_to (click) 172571 128475 10 64 0 0% 0 0 0
setivar (click) 170587 127536 10 38 0 0% 0 0 0
str_concat (click) 170587 127868 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.