YJIT Benchmarks

Details for Benchmarks at 2022-04-19 19:14:41

Overall YJIT is 33.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.4% 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 5 150 75 150 20 150
mail 5 123 75 123 20 123
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 30 75 30 20 30
discourse 5 37 75 37 20 37
erubi 5 47 75 47 20 47
erubi_rails 5 986 75 986 20 986
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 419 75 419 20 419
fib 5 319 75 319 20 319
getivar 5 780 75 780 20 780
keyword_args 5 376 75 376 20 376
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) 988049 810225 185 1164 0 0% 0 0 0
hexapdf (click) 1099025 922722 599 7886 429 5% 0 0 321
liquid-render (click) 504209 425900 143 1537 92 5% 0 0 5
mail (click) 844369 655467 324 4968 96 1% 0 0 111
psych-load (click) 341329 286443 59 434 1 0% 0 0 0
railsbench (click) 2597393 2103249 1297 9381 224 2% 0 0 26
binarytrees (click) 170193 139155 11 58 0 0% 0 0 0
chunky_png (click) 375313 309129 85 857 0 0% 0 0 0
discourse (click) 6240849 5607001 3128 26925 3242 12% 2 0 140
erubi (click) 329169 276912 10 79 0 0% 0 0 0
erubi_rails (click) 1956497 1596123 262 1890 12 0% 0 0 3
fannkuchredux (click) 182673 149150 8 188 0 0% 0 0 0
lee (click) 374545 311380 45 582 68 11% 0 0 13
nbody (click) 177937 144139 10 159 0 0% 0 0 0
optcarrot (click) 505425 451283 198 3575 20 0% 0 0 0
rubykon (click) 310609 258852 140 1524 1 0% 0 0 0
30k_ifelse (click) 5557969 4358776 9263 57804 0 0% 0 0 0
30k_methods (click) 2173137 1667238 5782 19361 0 0% 0 0 0
cfunc_itself (click) 167377 137081 8 49 0 0% 0 0 0
fib (click) 165457 136360 8 38 0 0% 0 0 0
getivar (click) 167185 138871 8 65 0 0% 0 0 0
keyword_args (click) 169041 138096 9 51 0 0% 0 0 0
respond_to (click) 169169 138319 8 64 0 0% 0 0 0
setivar (click) 167505 137302 8 39 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.