YJIT Benchmarks

Details for Benchmarks at 2022-09-19 05:39:24

Overall YJIT is 34.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 20.8% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 171 75 171 20 171
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 84 75 84 20 84
chunky_png 5 30 75 30 20 30
erubi 5 68 75 68 20 68
erubi_rails 5 1057 75 1057 20 1057
fannkuchredux 5 15 56 15 20 15
lee 5 20 75 20 20 20
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 70 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 429 75 429 20 429
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 371 75 371 20 371
respond_to 5 663 75 663 20 663
setivar 5 402 75 402 20 402
str_concat 5 421 75 421 20 421

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) 1065847 776445 131 1270 0 0% 0 0 0
hexapdf (click) 1176247 917757 682 8039 9 0% 0 0 0
liquid-render (click) 529079 401144 150 1725 2 0% 0 0 0
mail (click) 924279 644814 374 5355 17 0% 0 0 0
psych-load (click) 355447 260647 68 474 1 0% 0 0 0
railsbench (click) 2720503 1955090 1436 10014 16 0% 0 0 0
binarytrees (click) 177079 127640 13 64 0 0% 0 0 0
chunky_png (click) 396791 287262 88 997 0 0% 0 0 0
erubi (click) 341111 250519 10 79 0 0% 0 0 0
erubi_rails (click) 2013175 1422243 300 2028 4 0% 0 0 0
fannkuchredux (click) 189879 136594 10 196 0 0% 0 0 0
lee (click) 395511 287802 58 634 0 0% 0 0 0
nbody (click) 187319 136374 12 171 0 0% 0 0 0
optcarrot (click) 531831 441312 207 3592 20 0% 0 0 0
rubykon (click) 328759 254726 144 1568 1 0% 0 0 0
30k_ifelse (click) 5664183 4347244 9265 57804 0 0% 0 0 0
30k_methods (click) 2208503 1655756 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174391 125599 10 49 0 0% 0 0 0
fib (click) 173047 125560 10 38 0 0% 0 0 0
getivar (click) 174519 127294 10 65 0 0% 0 0 0
keyword_args (click) 175415 126593 11 51 0 0% 0 0 0
respond_to (click) 174647 126813 10 64 0 0% 0 0 0
setivar (click) 174455 126114 10 38 0 0% 0 0 0
str_concat (click) 174391 126446 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.