YJIT Benchmarks

Details for Benchmarks at 2022-09-10 05:30:31

Overall YJIT is 35.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.9% 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 5 197 75 197 20 197
hexapdf 5 15 20 15
liquid-render 5 161 75 161 20 161
mail 5 129 75 129 20 129
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
erubi 5 67 75 67 20 67
erubi_rails 5 1042 75 1042 20 1042
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 53 73 53 20 53
30k_methods 5 25 23 25 20 25
cfunc_itself 5 444 75 444 20 444
fib 5 309 75 309 20 309
getivar 5 469 75 469 20 469
keyword_args 5 384 75 384 20 384
respond_to 5 105 75 105 20 105
setivar 5 462 75 462 20 462
str_concat 5 455 75 455 20 455

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) 1073911 778344 131 1270 0 0% 0 0 0
hexapdf (click) 1184119 918929 682 8020 9 0% 0 0 0
liquid-render (click) 531767 399001 150 1673 2 0% 0 0 0
mail (click) 977143 677804 374 5799 17 0% 0 0 0
psych-load (click) 360311 263489 68 482 1 0% 0 0 0
railsbench (click) 2761143 1967890 1436 10105 16 0% 0 0 0
binarytrees (click) 176695 127176 13 58 0 0% 0 0 0
chunky_png (click) 401143 289376 88 1011 0 0% 0 0 0
erubi (click) 343159 251282 10 79 0 0% 0 0 0
erubi_rails (click) 2040503 1429293 300 2038 4 0% 0 0 0
fannkuchredux (click) 189495 136341 10 196 0 0% 0 0 0
lee (click) 398391 289313 58 634 0 0% 0 0 0
nbody (click) 187959 136521 12 171 0 0% 0 0 0
optcarrot (click) 532791 441672 207 3591 20 0% 0 0 0
rubykon (click) 330551 255639 144 1577 1 0% 0 0 0
30k_ifelse (click) 5664055 4347204 9265 57804 0 0% 0 0 0
30k_methods (click) 2208695 1655882 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174519 125675 10 49 0 0% 0 0 0
fib (click) 172727 125357 10 38 0 0% 0 0 0
getivar (click) 174519 127444 10 65 0 0% 0 0 0
keyword_args (click) 174903 126150 11 51 0 0% 0 0 0
respond_to (click) 177655 127553 10 64 0 0% 0 0 0
setivar (click) 174071 125861 10 38 0 0% 0 0 0
str_concat (click) 174583 126572 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.