YJIT Benchmarks

Details for Benchmarks at 2022-04-19 07:14:08

Overall YJIT is 33.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.4% 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 5 184 75 184 20 184
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 29 75 29 20 29
discourse 5 36 75 36 20 36
erubi 5 48 75 48 20 48
erubi_rails 5 960 75 960 20 960
fannkuchredux 5 15 75 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 28 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 449 75 449 20 449
fib 5 319 75 319 20 319
getivar 5 783 75 783 20 783
keyword_args 5 377 75 377 20 377
respond_to 5 110 75 110 20 110
setivar 5 1912 75 1912 20 1912

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) 991633 813190 185 1185 0 0% 0 0 0
hexapdf (click) 1097873 921897 599 7879 427 5% 0 0 321
liquid-render (click) 506897 427948 143 1565 92 5% 0 0 5
mail (click) 845585 656368 324 4972 96 1% 0 0 111
psych-load (click) 337937 282253 59 434 1 0% 0 0 0
railsbench (click) 2592401 2098916 1297 9346 224 2% 0 0 26
binarytrees (click) 170193 139155 11 58 0 0% 0 0 0
chunky_png (click) 372561 305564 85 870 0 0% 0 0 0
discourse (click) 6239505 5606304 3128 26903 3246 12% 2 0 140
erubi (click) 329681 277241 10 79 0 0% 0 0 0
erubi_rails (click) 1956113 1595683 262 1870 12 0% 0 0 3
fannkuchredux (click) 183953 149853 8 188 0 0% 0 0 0
lee (click) 378513 315736 45 582 68 11% 0 0 13
nbody (click) 179473 146356 10 158 0 0% 0 0 0
optcarrot (click) 504913 450954 198 3575 20 0% 0 0 0
rubykon (click) 310801 258920 140 1526 1 0% 0 0 0
30k_ifelse (click) 5557969 4358776 9263 57804 0 0% 0 0 0
30k_methods (click) 2172113 1665350 5782 19362 0 0% 0 0 0
cfunc_itself (click) 166865 136752 8 49 0 0% 0 0 0
fib (click) 165969 136689 8 38 0 0% 0 0 0
getivar (click) 166161 136983 8 66 0 0% 0 0 0
keyword_args (click) 166737 135505 9 52 0 0% 0 0 0
respond_to (click) 170833 139238 8 64 0 0% 0 0 0
setivar (click) 167697 137724 8 38 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.