YJIT Benchmarks

Details for Benchmarks at 2022-06-19 05:14:35

Overall YJIT is 34.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.5% 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 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 67 75 67 20 67
chunky_png 5 30 75 30 20 30
discourse 5 41 75 41 20 41
erubi 5 50 75 50 20 50
erubi_rails 5 1004 75 1004 20 1004
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 33 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 442 75 442 20 442
fib 5 311 75 311 20 311
getivar 5 763 75 763 20 763
keyword_args 5 377 75 377 20 377
respond_to 5 106 75 106 20 106
setivar 5 1866 75 1866 20 1866
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) 1011803 752758 131 1242 0 0% 0 0 0
hexapdf (click) 1121691 880122 682 7764 9 0% 0 0 0
liquid-render (click) 514459 394407 150 1632 2 0% 0 0 0
mail (click) 911835 658609 374 5524 15 0% 0 0 0
psych-load (click) 340123 255508 68 462 1 0% 0 0 0
railsbench (click) 2626203 1919640 1436 9870 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 378267 282775 88 977 0 0% 0 0 0
discourse (click) 5912539 4392776 3198 25411 85 0% 2 0 0
erubi (click) 319259 242668 10 79 0 0% 0 0 0
erubi_rails (click) 1928731 1389888 300 1975 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 378395 283802 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) 320731 252879 144 1550 2 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) 170331 128117 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 172187 128854 11 51 0 0% 0 0 0
respond_to (click) 173979 129963 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.