YJIT Benchmarks

Details for Benchmarks at 2022-05-26 07:12:55

Overall YJIT is 32.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 25.0% 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 5 189 75 189 20 189
hexapdf 5 15 20 15
liquid-render 5 139 75 139 20 139
mail 5 108 75 108 20 108
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 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 795 75 795 20 795
fannkuchredux 5 15 51 15 20 15
lee 5 21 75 21 20 21
nbody 5 276 75 276 20 276
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 430 75 430 20 430
fib 5 320 75 320 20 320
getivar 5 757 75 757 20 757
keyword_args 5 378 75 378 20 378
respond_to 5 106 75 106 20 106
setivar 5 1846 75 1846 20 1846
str_concat 5 194 75 194 20 194

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) 1018395 756943 131 1271 0 0% 0 0 0
hexapdf (click) 1119195 877875 682 7744 10 0% 0 0 0
liquid-render (click) 505371 387289 150 1557 2 0% 0 0 0
mail (click) 890203 642740 374 5311 15 0% 0 0 0
psych-load (click) 339419 254724 68 457 1 0% 0 0 0
railsbench (click) 2643867 1930722 1436 9878 16 0% 0 0 0
binarytrees (click) 173915 130095 13 58 0 0% 0 0 0
chunky_png (click) 377243 281989 88 973 0 0% 0 0 0
discourse (click) 5934107 4404096 3196 25395 84 0% 2 0 0
erubi (click) 317403 241425 10 79 0 0% 0 0 0
erubi_rails (click) 1950875 1403253 300 2000 4 0% 0 0 0
fannkuchredux (click) 187931 140793 10 188 0 0% 0 0 0
lee (click) 377947 283302 58 622 0 0% 0 0 0
nbody (click) 183387 137296 12 158 0 0% 0 0 0
optcarrot (click) 514907 442923 207 3571 20 0% 0 0 0
rubykon (click) 318747 250975 144 1531 1 0% 0 0 0
30k_ifelse (click) 5563291 4350797 9265 57804 0 0% 0 0 0
30k_methods (click) 2178139 1658881 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171099 127863 10 49 0 0% 0 0 0
fib (click) 170907 128332 10 38 0 0% 0 0 0
getivar (click) 172699 130843 10 65 0 0% 0 0 0
keyword_args (click) 173083 129230 11 51 0 0% 0 0 0
respond_to (click) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 172443 129552 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.