YJIT Benchmarks

Details for Benchmarks at 2022-08-28 20:13:59

Overall YJIT is 33.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.7% 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.

Want Raw Graphs and CSV?

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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 160 75 160 20 160
mail 5 126 75 126 20 126
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 1013 75 1013 20 1013
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 55 71 55 20 55
30k_methods 5 22 22 22 20 22
cfunc_itself 5 427 75 427 20 427
fib 5 315 75 315 20 315
getivar 5 609 75 609 20 609
keyword_args 5 367 75 367 20 367
respond_to 5 107 75 107 20 107
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) 1039963 782561 131 1286 0 0% 0 0 0
hexapdf (click) 1149787 923256 683 8012 9 0% 0 0 0
liquid-render (click) 517275 401919 150 1669 2 0% 0 0 0
mail (click) 897691 648257 374 5314 17 0% 0 0 0
psych-load (click) 346907 263080 68 480 1 0% 0 0 0
railsbench (click) 2654043 1966160 1436 10017 16 0% 0 0 0
binarytrees (click) 171355 128129 13 58 0 0% 0 0 0
chunky_png (click) 388827 290846 88 1010 0 0% 0 0 0
erubi (click) 331355 252432 10 79 0 0% 0 0 0
erubi_rails (click) 1961243 1428819 300 2026 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 385115 290541 58 632 0 0% 0 0 0
nbody (click) 181595 136896 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320923 256865 144 1580 1 0% 0 0 0
30k_ifelse (click) 5560155 4348219 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) 169819 128219 10 65 0 0% 0 0 0
keyword_args (click) 170459 127258 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.