YJIT Benchmarks

Details for Benchmarks at 2022-05-06 07:13:11

Overall YJIT is 32.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.4% 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 5 158 75 158 20 158
mail 5 125 75 125 20 125
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
discourse 5 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 988 75 988 20 988
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 443 75 443 20 443
fib 5 319 75 319 20 319
getivar 5 764 75 764 20 764
keyword_args 5 379 75 379 20 379
respond_to 5 105 75 105 20 105
setivar 5 1859 75 1859 20 1859
str_concat 5 198 75 198 20 198

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) 1013595 752646 131 1257 0 0% 0 0 0
hexapdf (click) 1113883 873470 682 7695 9 0% 0 0 0
liquid-render (click) 508187 389033 150 1593 2 0% 0 0 0
mail (click) 887579 642482 374 5283 15 0% 0 0 0
psych-load (click) 339931 255453 68 457 1 0% 0 0 0
railsbench (click) 2623963 1916079 1435 9838 16 0% 0 0 0
binarytrees (click) 173723 130209 13 58 0 0% 0 0 0
chunky_png (click) 382235 285169 88 1028 0 0% 0 0 0
discourse (click) 5966427 4421224 3270 25930 85 0% 2 0 0
erubi (click) 322267 242478 10 79 0 0% 0 0 0
erubi_rails (click) 1931803 1389855 300 1995 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 377883 283480 58 618 0 0% 0 0 0
nbody (click) 182683 137081 12 158 0 0% 0 0 0
optcarrot (click) 513883 442330 207 3571 20 0% 0 0 0
rubykon (click) 317595 250647 144 1529 1 0% 0 0 0
30k_ifelse (click) 5562267 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2184667 1661473 5784 19403 0 0% 0 0 0
cfunc_itself (click) 171739 128509 10 49 0 0% 0 0 0
fib (click) 170715 128446 10 38 0 0% 0 0 0
getivar (click) 171995 130628 10 65 0 0% 0 0 0
keyword_args (click) 172571 129150 11 51 0 0% 0 0 0
respond_to (click) 173851 129963 10 64 0 0% 0 0 0
setivar (click) 171419 128856 10 38 0 0% 0 0 0
str_concat (click) 172443 129801 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.