YJIT Benchmarks

Details for Benchmarks at 2022-08-10 20:16:41

Overall YJIT is 35.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.4% 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 5 158 75 158 20 158
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 31 75 31 20 31
erubi 5 62 75 62 20 62
erubi_rails 5 1037 75 1037 20 1037
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 443 75 443 20 443
fib 5 315 75 315 20 315
getivar 5 616 75 616 20 616
keyword_args 5 379 75 379 20 379
respond_to 5 106 75 106 20 106
setivar 5 958 75 958 20 958
str_concat 5 465 75 465 20 465

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) 1037467 780497 131 1293 0 0% 0 0 0
hexapdf (click) 1150811 924478 683 8020 9 0% 0 0 0
liquid-render (click) 521819 406486 150 1709 2 0% 0 0 0
mail (click) 914075 659522 374 5446 17 0% 0 0 0
psych-load (click) 347355 263298 68 482 1 0% 0 0 0
railsbench (click) 2656539 1966982 1436 10038 16 0% 0 0 0
binarytrees (click) 171675 127963 13 58 0 0% 0 0 0
chunky_png (click) 388123 290347 88 1014 0 0% 0 0 0
erubi (click) 322587 245629 10 79 0 0% 0 0 0
erubi_rails (click) 1961435 1428477 300 2026 4 0% 0 0 0
fannkuchredux (click) 186139 138394 10 196 0 0% 0 0 0
lee (click) 386395 291993 58 632 0 0% 0 0 0
nbody (click) 182811 137821 12 171 0 0% 0 0 0
optcarrot (click) 513755 442692 207 3588 20 0% 0 0 0
rubykon (click) 320923 257245 144 1569 1 0% 0 0 0
30k_ifelse (click) 5561243 4349094 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657556 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127399 10 49 0 0% 0 0 0
fib (click) 169179 127007 10 38 0 0% 0 0 0
getivar (click) 170907 129094 10 65 0 0% 0 0 0
keyword_args (click) 171227 127662 11 51 0 0% 0 0 0
respond_to (click) 172507 128475 10 64 0 0% 0 0 0
setivar (click) 170395 127618 10 38 0 0% 0 0 0
str_concat (click) 170523 127868 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.