YJIT Benchmarks

Details for Benchmarks at 2022-06-11 05:13:50

Overall YJIT is 34.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.7% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 154 75 154 20 154
mail 5 123 75 123 20 123
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 30 75 30 20 30
discourse 5 41 75 41 20 41
erubi 5 49 75 49 20 49
erubi_rails 5 997 75 997 20 997
fannkuchredux 5 15 52 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 446 75 446 20 446
fib 5 320 75 320 20 320
getivar 5 761 75 761 20 761
keyword_args 5 379 75 379 20 379
respond_to 5 107 75 107 20 107
setivar 5 1823 75 1823 20 1823
str_concat 5 192 75 192 20 192

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) 1013979 754688 131 1235 0 0% 0 0 0
hexapdf (click) 1122139 880390 682 7767 9 0% 0 0 0
liquid-render (click) 516955 395943 150 1663 2 0% 0 0 0
mail (click) 900443 652191 374 5430 15 0% 0 0 0
psych-load (click) 339675 255149 68 457 1 0% 0 0 0
railsbench (click) 2620443 1916448 1436 9845 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 377115 282175 88 969 0 0% 0 0 0
discourse (click) 5919643 4396267 3197 25448 85 0% 2 0 0
erubi (click) 319387 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1928219 1389839 300 1974 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 378395 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) 319131 251709 144 1537 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) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171099 128682 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 173467 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) 172827 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.