YJIT Benchmarks

Details for Benchmarks at 2022-09-08 05:36:35

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.1% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 161 75 161 20 161
mail 5 127 75 127 20 127
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
erubi 5 60 75 60 20 60
erubi_rails 5 1041 75 1041 20 1041
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 54 70 54 20 54
30k_methods 5 25 22 25 20 25
cfunc_itself 5 448 75 448 20 448
fib 5 309 75 309 20 309
getivar 5 469 75 469 20 469
keyword_args 5 376 75 376 20 376
respond_to 5 104 75 104 20 104
setivar 5 379 75 379 20 379
str_concat 5 422 75 422 20 422

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) 1078903 782425 131 1298 0 0% 0 0 0
hexapdf (click) 1193271 922997 683 8008 9 0% 0 0 0
liquid-render (click) 535863 402267 150 1674 2 0% 0 0 0
mail (click) 944951 658172 374 5433 17 0% 0 0 0
psych-load (click) 360375 263248 68 482 1 0% 0 0 0
railsbench (click) 2768823 1974624 1436 10050 16 0% 0 0 0
binarytrees (click) 177143 127751 13 58 0 0% 0 0 0
chunky_png (click) 400823 289368 88 995 0 0% 0 0 0
erubi (click) 344439 252482 10 79 0 0% 0 0 0
erubi_rails (click) 2047543 1433194 300 2032 4 0% 0 0 0
fannkuchredux (click) 191287 137519 10 196 0 0% 0 0 0
lee (click) 399863 290563 58 634 0 0% 0 0 0
nbody (click) 188471 136946 12 171 0 0% 0 0 0
optcarrot (click) 534839 441644 207 3588 20 0% 0 0 0
rubykon (click) 333495 257417 144 1587 1 0% 0 0 0
30k_ifelse (click) 5705271 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2208887 1656356 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175735 126524 10 49 0 0% 0 0 0
fib (click) 172791 125429 10 38 0 0% 0 0 0
getivar (click) 175863 128219 10 65 0 0% 0 0 0
keyword_args (click) 176439 127165 11 51 0 0% 0 0 0
respond_to (click) 178039 127978 10 64 0 0% 0 0 0
setivar (click) 175799 127039 10 38 0 0% 0 0 0
str_concat (click) 175735 127371 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.