YJIT Benchmarks

Details for Benchmarks at 2022-06-30 20:14:53

Overall YJIT is 36.4% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
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 53 75 53 20 53
erubi_rails 5 985 75 985 20 985
fannkuchredux 5 15 57 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 440 75 440 20 440
fib 5 314 75 314 20 314
getivar 5 767 75 767 20 767
keyword_args 5 379 75 379 20 379
respond_to 5 108 75 108 20 108
setivar 5 1883 75 1883 20 1883
str_concat 5 368 75 368 20 368

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) 1024859 761063 131 1250 0 0% 0 0 0
hexapdf (click) 1124251 882119 683 7760 10 0% 0 0 0
liquid-render (click) 511131 391605 150 1636 2 0% 0 0 0
mail (click) 921307 664797 374 5560 15 0% 0 0 0
psych-load (click) 344155 257780 68 457 1 0% 0 0 0
railsbench (click) 2633371 1924760 1436 9901 16 0% 0 0 0
binarytrees (click) 173467 129779 13 58 0 0% 0 0 0
chunky_png (click) 385115 287144 88 1003 0 0% 0 0 0
erubi (click) 318811 242049 10 79 0 0% 0 0 0
erubi_rails (click) 1942811 1397356 300 1990 4 0% 0 0 0
fannkuchredux (click) 186971 140148 10 188 0 0% 0 0 0
lee (click) 382363 286099 58 623 0 0% 0 0 0
nbody (click) 182427 136651 12 158 0 0% 0 0 0
optcarrot (click) 514395 442558 207 3585 20 0% 0 0 0
rubykon (click) 317659 250288 144 1529 1 0% 0 0 0
30k_ifelse (click) 5562011 4349774 9265 57804 0 0% 0 0 0
30k_methods (click) 2177115 1658214 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171995 128408 10 49 0 0% 0 0 0
fib (click) 169947 127687 10 38 0 0% 0 0 0
getivar (click) 172251 130527 10 65 0 0% 0 0 0
keyword_args (click) 172315 128720 11 51 0 0% 0 0 0
respond_to (click) 173595 129533 10 64 0 0% 0 0 0
setivar (click) 171675 128722 10 38 0 0% 0 0 0
str_concat (click) 172123 129426 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.