YJIT Benchmarks

Details for Benchmarks at 2022-06-18 20:14:23

Overall YJIT is 35.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.7% 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 5 155 75 155 20 155
mail 5 125 75 125 20 125
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 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 51 75 51 20 51
erubi_rails 5 988 75 988 20 988
fannkuchredux 5 15 52 15 20 15
lee 5 21 75 21 20 21
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 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 5 315 75 315 20 315
getivar 5 755 75 755 20 755
keyword_args 5 377 75 377 20 377
respond_to 5 104 75 104 20 104
setivar 5 1838 75 1838 20 1838
str_concat 5 196 75 196 20 196

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) 1015835 755404 131 1248 0 0% 0 0 0
hexapdf (click) 1119707 878940 682 7748 9 0% 0 0 0
liquid-render (click) 511259 391511 150 1600 2 0% 0 0 0
mail (click) 923419 667806 374 5648 15 0% 0 0 0
psych-load (click) 339483 254981 68 457 1 0% 0 0 0
railsbench (click) 2621403 1917582 1436 9840 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 384603 286448 88 1040 0 0% 0 0 0
discourse (click) 5935707 4406201 3195 25534 85 0% 2 0 0
erubi (click) 319515 242761 10 79 0 0% 0 0 0
erubi_rails (click) 1932315 1392421 300 2005 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 378331 283827 58 622 0 0% 0 0 0
nbody (click) 183643 137578 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 319131 251579 144 1536 1 0% 0 0 0
30k_ifelse (click) 5563163 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171099 128682 10 38 0 0% 0 0 0
getivar (click) 171611 130332 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174875 130528 10 64 0 0% 0 0 0
setivar (click) 172955 129717 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 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.