YJIT Benchmarks

Details for Benchmarks at 2022-01-11 07:10:29

Overall YJIT is 29.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.6% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 188 20 188 75 188 20 188
hexapdf 5 15 20 15 20 15
liquid-render 5 160 20 160 75 160 20 160
mail 5 142 20 142 75 142 20 142
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 85 20 85 75 85 20 85
erubi 5 56 20 56 75 56 20 56
erubi_rails 5 994 20 994 75 994 20 994
fannkuchredux 5 15 20 15 54 15 20 15
lee 5 27 20 27 75 27 20 27
nbody 5 343 20 343 75 343 20 343
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 43 15 20 15
30k_ifelse 5 62 20 62 75 62 20 62
30k_methods 5 26 20 26 44 26 20 26
cfunc_itself 5 515 20 515 75 515 20 515
fib 5 383 20 383 75 383 20 383
getivar 5 563 20 563 75 563 20 563
keyword_args 5 438 20 438 75 438 20 438
respond_to 5 123 20 123 75 123 20 123
setivar 5 457 20 457 75 457 20 457

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) 970449 742990 185 1198 0 0% 0 0 0
hexapdf (click) 1118865 917010 599 8163 614 7% 0 0 321
liquid-render (click) 473873 376338 144 1508 95 6% 0 0 1
mail (click) 852881 635874 325 5348 124 2% 0 0 39
psych-load (click) 302353 236886 59 433 1 0% 0 0 0
railsbench (click) 2504977 1905520 1297 9226 268 2% 0 0 26
binarytrees (click) 113745 87077 10 54 0 0% 0 0 0
erubi (click) 292369 231511 9 73 0 0% 0 0 0
erubi_rails (click) 1898257 1428284 261 1979 18 0% 0 0 3
fannkuchredux (click) 128017 98104 7 184 0 0% 0 0 0
lee (click) 333649 262779 45 586 72 12% 0 0 12
nbody (click) 123537 94607 9 154 0 0% 0 0 0
optcarrot (click) 450385 400021 197 3571 20 0% 0 0 0
rubykon (click) 254801 207161 139 1524 2 0% 0 0 0
30k_ifelse (click) 5502929 4307514 9262 57800 0 0% 0 0 0
30k_methods (click) 2118097 1615976 5781 19357 0 0% 0 0 0
cfunc_itself (click) 112721 86035 7 45 0 0% 0 0 0
fib (click) 110801 85314 7 34 0 0% 0 0 0
getivar (click) 113041 88154 7 61 0 0% 0 0 0
keyword_args (click) 113105 86347 8 47 0 0% 0 0 0
respond_to (click) 114897 87489 7 60 0 0% 0 0 0
setivar (click) 112529 86349 7 34 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.