YJIT Benchmarks

Details for Benchmarks at 2022-08-24 20:14:04

Overall YJIT is 35.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.7% 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 5 159 75 159 20 159
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 30 75 30 20 30
erubi 5 62 75 62 20 62
erubi_rails 5 1025 75 1025 20 1025
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 259 75 259 20 259
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 55 69 55 20 55
30k_methods 5 21 23 21 20 21
cfunc_itself 5 431 75 431 20 431
fib 5 315 75 315 20 315
getivar 5 615 75 615 20 615
keyword_args 5 366 75 366 20 366
respond_to 5 108 75 108 20 108
setivar 5 981 75 981 20 981
str_concat 5 434 75 434 20 434

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) 1040603 782947 131 1289 0 0% 0 0 0
hexapdf (click) 1150043 924282 682 8018 10 0% 0 0 0
liquid-render (click) 514395 399830 150 1640 2 0% 0 0 0
mail (click) 923291 664649 374 5559 17 0% 0 0 0
psych-load (click) 347227 263198 68 482 1 0% 0 0 0
railsbench (click) 2660379 1969424 1436 10042 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 390107 291632 88 1032 0 0% 0 0 0
erubi (click) 331419 252432 10 79 0 0% 0 0 0
erubi_rails (click) 1962139 1429335 300 2030 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 385371 290919 58 632 0 0% 0 0 0
nbody (click) 181531 136661 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320539 256756 144 1574 1 0% 0 0 0
30k_ifelse (click) 5560027 4348169 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) 168091 126132 10 38 0 0% 0 0 0
getivar (click) 170075 128597 10 65 0 0% 0 0 0
keyword_args (click) 170459 127165 11 51 0 0% 0 0 0
respond_to (click) 171995 128356 10 64 0 0% 0 0 0
setivar (click) 170011 127417 10 38 0 0% 0 0 0
str_concat (click) 169755 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.