YJIT Benchmarks

Details for Benchmarks at 2022-06-06 19:13:07

Overall YJIT is 30.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.6% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 140 75 140 20 140
mail 5 108 75 108 20 108
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 29 75 29 20 29
discourse 5 32 75 32 20 32
erubi 5 48 75 48 20 48
erubi_rails 5 810 75 810 20 810
fannkuchredux 5 15 75 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 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 438 75 438 20 438
fib 5 320 75 320 20 320
getivar 5 757 75 757 20 757
keyword_args 5 373 75 373 20 373
respond_to 5 107 75 107 20 107
setivar 5 1837 75 1837 20 1837
str_concat 5 202 75 202 20 202

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) 1015963 755132 131 1253 0 0% 0 0 0
hexapdf (click) 1123355 881057 682 7779 10 0% 0 0 0
liquid-render (click) 502107 385773 150 1511 2 0% 0 0 0
mail (click) 933019 673675 374 5728 15 0% 0 0 0
psych-load (click) 339483 255031 68 457 1 0% 0 0 0
railsbench (click) 2651931 1936334 1436 9902 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 379739 283694 88 996 0 0% 0 0 0
discourse (click) 5976603 4434001 3196 25603 85 0% 2 0 0
erubi (click) 319707 242966 10 79 0 0% 0 0 0
erubi_rails (click) 1953819 1405850 300 1987 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 378459 283827 58 622 0 0% 0 0 0
nbody (click) 183707 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 321435 253647 144 1560 1 0% 0 0 0
30k_ifelse (click) 5563291 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172635 129074 10 49 0 0% 0 0 0
fib (click) 171163 128682 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174747 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.