YJIT Benchmarks

Details for Benchmarks at 2022-10-04 17:20:47

Overall YJIT is 33.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.0% 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 YJIT warmups YJIT iters
activerecord 5 196 20 196
hexapdf 5 15 20 15
liquid-render 5 171 20 171
mail 5 129 20 129
psych-load 5 15 20 15
railsbench 5 15 20 15
binarytrees 5 84 20 84
chunky_png 5 29 20 29
erubi 5 67 20 67
erubi_rails 5 1053 20 1053
fannkuchredux 5 15 20 15
lee 5 20 20 20
nbody 5 262 20 262
optcarrot 5 15 20 15
rubykon 5 15 20 15
30k_ifelse 5 55 20 55
30k_methods 5 25 20 25
cfunc_itself 5 428 20 428
fib 5 313 20 313
getivar 5 467 20 467
keyword_args 5 359 20 359
respond_to 5 632 20 632
setivar 5 490 20 490
str_concat 5 492 20 492

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) 2426961 1506954 23 253 6 2% 0 0 0
hexapdf (click) 1891219 1387650 873 9392 181 1% 0 0 0
liquid-render (click) 749203 518209 154 1660 34 2% 0 0 0
mail (click) 1477267 989763 385 4864 174 3% 0 0 0
psych-load (click) 939155 627699 68 435 18 4% 0 0 0
railsbench (click) 5307025 3393127 1784 12222 468 3% 0 0 0
binarytrees (click) 318163 203226 14 70 4 5% 0 0 0
chunky_png (click) 960083 647230 87 1014 31 3% 0 0 0
erubi (click) 890835 600663 11 76 4 5% 0 0 0
erubi_rails (click) 4385489 2718894 327 2379 104 4% 0 0 0
fannkuchredux (click) 330771 212632 11 200 4 2% 0 0 0
lee (click) 970259 657017 80 744 25 3% 0 0 0
nbody (click) 334099 215972 13 179 6 3% 0 0 0
optcarrot (click) 756947 594173 201 3773 93 2% 0 0 0
rubykon (click) 471059 331216 143 1567 32 2% 0 0 0
30k_ifelse (click) 5620819 4412086 9266 57127 4 0% 0 0 0
30k_methods (click) 2275987 1730454 5785 19356 4 0% 0 0 0
cfunc_itself (click) 315603 201078 11 53 4 7% 0 0 0
fib (click) 314131 200761 11 42 4 9% 0 0 0
getivar (click) 312339 200655 11 69 4 5% 0 0 0
keyword_args (click) 316883 202048 12 55 4 7% 0 0 0
respond_to (click) 314963 201513 11 55 5 9% 0 0 0
setivar (click) 316883 202232 11 42 4 9% 0 0 0
str_concat (click) 315859 201927 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.