YJIT Benchmarks

Details for Benchmarks at 2022-10-08 20:10:37

Overall YJIT is 35.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.4% 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 YJIT warmups YJIT iters
activerecord 5 192 5 192
hexapdf 5 15 5 15
liquid-render 5 175 5 175
mail 5 129 5 129
psych-load 5 15 5 15
railsbench 5 15 5 15
binarytrees 5 84 5 84
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1014 5 1014
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 217 5 217
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 57 5 57
30k_methods 5 24 5 24
cfunc_itself 5 456 5 456
fib 5 324 5 324
getivar 5 467 5 467
keyword_args 5 372 5 372
respond_to 5 668 5 668
setivar 5 420 5 420
str_concat 5 469 5 469

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) 2482001 1543509 23 265 6 2% 0 0 0
hexapdf (click) 1883923 1382621 873 9356 181 1% 0 0 0
liquid-render (click) 748435 517665 154 1660 34 2% 0 0 0
mail (click) 1477523 989893 385 4865 174 3% 0 0 0
psych-load (click) 933203 623839 68 434 18 4% 0 0 0
railsbench (click) 5389969 3445209 1784 12467 470 3% 0 0 0
binarytrees (click) 317715 202966 14 70 4 5% 0 0 0
chunky_png (click) 953811 643279 87 1011 31 3% 0 0 0
erubi (click) 891155 601023 11 76 4 5% 0 0 0
erubi_rails (click) 4470865 2768686 327 2445 104 4% 0 0 0
fannkuchredux (click) 330323 212372 11 200 4 2% 0 0 0
lee (click) 969939 656785 80 744 25 3% 0 0 0
nbody (click) 333139 215383 13 179 6 3% 0 0 0
optcarrot (click) 752083 591112 201 3773 93 2% 0 0 0
rubykon (click) 471059 331792 144 1575 32 2% 0 0 0
30k_ifelse (click) 5620371 4411826 9266 57127 4 0% 0 0 0
30k_methods (click) 2275731 1730310 5785 19356 4 0% 0 0 0
cfunc_itself (click) 315347 200934 11 53 4 7% 0 0 0
fib (click) 310227 198318 11 42 4 9% 0 0 0
getivar (click) 311891 200395 11 69 4 5% 0 0 0
keyword_args (click) 311763 198831 12 55 4 7% 0 0 0
respond_to (click) 310355 198625 11 55 5 9% 0 0 0
setivar (click) 311763 199015 11 42 4 9% 0 0 0
str_concat (click) 315603 201783 13 68 6 8% 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.