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Data in multiple arrays

You need to maintain related data using an ordinary string key:

Each array contains one data of one set
Array of struct
Map using the key to access the struct

src>go test -bench=. ./arraysstruct

Results

Arrays are slightly faster. Performance of an array of struct is similar with the advantage of stronger typing. The map is 30% more expensive.

go version go12 windows/amd64

BenchmarkArrays-4                5000000               285 ns/op
BenchmarkArrayStructs-4          5000000               300 ns/op
BenchmarkMapStructs-4            3000000               413 ns/op
PASS