Go Benchmark Map vs Slice
Update Github user Kuba left this comment in the form of a github issue back when my blog was hosted on github pages: https://github.com/miketmoore/miketmoore.github.io/issues/1. I think this is a great example of how inviting and helpful the Go community can be. Kuba pointed out a problem with my benchmark and how slices are actually fast!
A quick benchmark comparing performance of writing to a map versus appending to a slice. I also created two separate benchmarks to compare setting bool versus uint8 in the maps. It looks like the map with the uint8 values is the fastest option.
Results#
Mon Dec 17 09:37:28 > go test -bench=. -benchtime=20s
goos: darwin
goarch: amd64
pkg: github.com/miketmoore/mapsvsslicesperf
BenchmarkMapBool-8 100000000 208 ns/op
BenchmarkMapUint8-8 200000000 180 ns/op
BenchmarkSlice-8 20000000 1967 ns/op
PASS
ok github.com/miketmoore/mapsvsslicesperf 118.673s