YJIT Benchmarks

Details for Benchmarks at 2022-07-10 20:14:18

Overall YJIT is 35.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.9% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 29 75 29 20 29
erubi 5 53 75 53 20 53
erubi_rails 5 1003 75 1003 20 1003
fannkuchredux 5 15 75 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 5 444 75 444 20 444
fib 5 315 75 315 20 315
getivar 5 755 75 755 20 755
keyword_args 5 372 75 372 20 372
respond_to 5 104 75 104 20 104
setivar 5 1842 75 1842 20 1842
str_concat 5 379 75 379 20 379

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) 1026139 762849 131 1252 0 0% 0 0 0
hexapdf (click) 1122907 881194 682 7750 10 0% 0 0 0
liquid-render (click) 511835 392130 150 1638 2 0% 0 0 0
mail (click) 942811 680155 374 5752 15 0% 0 0 0
psych-load (click) 344027 257717 68 457 1 0% 0 0 0
railsbench (click) 2633627 1924823 1436 9895 16 0% 0 0 0
binarytrees (click) 172955 129450 13 58 0 0% 0 0 0
chunky_png (click) 382299 285387 88 970 0 0% 0 0 0
erubi (click) 321691 244169 10 79 0 0% 0 0 0
erubi_rails (click) 1942299 1397212 300 1972 4 0% 0 0 0
fannkuchredux (click) 186971 140148 10 188 0 0% 0 0 0
lee (click) 383323 287030 58 623 0 0% 0 0 0
nbody (click) 181723 136220 12 158 0 0% 0 0 0
optcarrot (click) 514907 442887 207 3585 20 0% 0 0 0
rubykon (click) 320539 253100 144 1564 1 0% 0 0 0
30k_ifelse (click) 5562011 4349774 9265 57804 0 0% 0 0 0
30k_methods (click) 2177691 1658565 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128112 10 49 0 0% 0 0 0
fib (click) 170459 128016 10 38 0 0% 0 0 0
getivar (click) 172251 130527 10 65 0 0% 0 0 0
keyword_args (click) 172827 129049 11 51 0 0% 0 0 0
respond_to (click) 174107 129862 10 64 0 0% 0 0 0
setivar (click) 172187 129051 10 38 0 0% 0 0 0
str_concat (click) 171099 128801 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.