YJIT Benchmarks

Details for Benchmarks at 2022-05-05 07:13:12

Overall YJIT is 34.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.3% 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.

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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 29 75 29 20 29
discourse 5 41 75 41 20 41
erubi 5 47 75 47 20 47
erubi_rails 5 1001 75 1001 20 1001
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 449 75 449 20 449
fib 5 319 75 319 20 319
getivar 5 767 75 767 20 767
keyword_args 5 372 75 372 20 372
respond_to 5 105 75 105 20 105
setivar 5 1853 75 1853 20 1853
str_concat 5 197 75 197 20 197

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) 1009819 750323 131 1246 0 0% 0 0 0
hexapdf (click) 1112987 872389 683 7683 9 0% 0 0 0
liquid-render (click) 511387 391203 150 1625 2 0% 0 0 0
mail (click) 877979 636259 374 5207 15 0% 0 0 0
psych-load (click) 339355 254964 68 457 1 0% 0 0 0
railsbench (click) 2624795 1916141 1435 9831 16 0% 0 0 0
binarytrees (click) 173211 129880 13 58 0 0% 0 0 0
chunky_png (click) 379931 283726 88 1000 0 0% 0 0 0
discourse (click) 5886043 4362216 3197 25215 83 0% 2 0 0
erubi (click) 322267 242503 10 79 0 0% 0 0 0
erubi_rails (click) 1930651 1388669 300 1976 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 375131 281272 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) 317019 250022 144 1520 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) 170715 128446 10 38 0 0% 0 0 0
getivar (click) 171483 130332 10 65 0 0% 0 0 0
keyword_args (click) 173083 129479 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) 171931 129472 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.