YJIT Benchmarks

Details for Benchmarks at 2022-08-23 05:36:29

Overall YJIT is 37.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.3% 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 5 159 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 64 75 64 20 64
chunky_png 5 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1025 75 1025 20 1025
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 55 68 55 20 55
30k_methods 5 22 21 22 20 22
cfunc_itself 5 431 75 431 20 431
fib 5 315 75 315 20 315
getivar 5 614 75 614 20 614
keyword_args 5 359 75 359 20 359
respond_to 5 105 75 105 20 105
setivar 5 980 75 980 20 980
str_concat 5 429 75 429 20 429

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) 1038491 781295 131 1279 0 0% 0 0 0
hexapdf (click) 1153051 926402 682 8048 10 0% 0 0 0
liquid-render (click) 520667 404985 150 1708 2 0% 0 0 0
mail (click) 925851 667306 374 5600 17 0% 0 0 0
psych-load (click) 346907 263030 68 480 1 0% 0 0 0
railsbench (click) 2659163 1968364 1436 10049 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 387227 290084 88 1006 0 0% 0 0 0
erubi (click) 331419 252432 10 79 0 0% 0 0 0
erubi_rails (click) 1962203 1428833 300 2024 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 385243 290944 58 632 0 0% 0 0 0
nbody (click) 181723 136946 12 171 0 0% 0 0 0
optcarrot (click) 512987 442063 207 3588 20 0% 0 0 0
rubykon (click) 322459 257936 144 1591 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) 169883 126902 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) 171739 127978 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.