YJIT Benchmarks

Details for Benchmarks at 2022-08-29 05:42:00

Overall YJIT is 34.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.0% 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 5 160 75 160 20 160
mail 5 127 75 127 20 127
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 62 75 62 20 62
erubi_rails 5 1020 75 1020 20 1020
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 54 64 54 20 54
30k_methods 5 22 22 22 20 22
cfunc_itself 5 418 75 418 20 418
fib 5 315 75 315 20 315
getivar 5 615 75 615 20 615
keyword_args 5 368 75 368 20 368
respond_to 5 108 75 108 20 108
setivar 5 983 75 983 20 983
str_concat 5 433 75 433 20 433

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) 1036891 780162 131 1264 0 0% 0 0 0
hexapdf (click) 1151707 924886 683 8031 9 0% 0 0 0
liquid-render (click) 519451 404351 150 1690 2 0% 0 0 0
mail (click) 923099 665437 374 5574 17 0% 0 0 0
psych-load (click) 346395 262883 68 482 1 0% 0 0 0
railsbench (click) 2654811 1965707 1436 10016 16 0% 0 0 0
binarytrees (click) 171355 128129 13 58 0 0% 0 0 0
chunky_png (click) 387163 289943 88 998 0 0% 0 0 0
erubi (click) 331419 252457 10 79 0 0% 0 0 0
erubi_rails (click) 1961435 1429030 300 2026 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 385115 290516 58 632 0 0% 0 0 0
nbody (click) 181723 136946 12 171 0 0% 0 0 0
optcarrot (click) 513371 442491 207 3588 20 0% 0 0 0
rubykon (click) 320859 256703 144 1572 1 0% 0 0 0
30k_ifelse (click) 5560411 4348597 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 168347 126510 10 38 0 0% 0 0 0
getivar (click) 169819 128219 10 65 0 0% 0 0 0
keyword_args (click) 170267 126880 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 169755 127039 10 38 0 0% 0 0 0
str_concat (click) 170011 127749 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.