A high performance concurrent map for Go, all functions are thread safe, support for generics.
// create a new hashmap with key type int and value type int
m := New[int, int](0)
// set the value for key
m.Set(1, 1)
m.Set(1, 2)
m.Set(2, 1)
// get count of key-value for the hashmap
n = m.Len()
// get value by key
v, ok = m.Get(1)
v, ok = m.Get(2)
// delete the value for a key.
m.Del(1)goos: linux
goarch: amd64
pkg: github.com/nnsgmsone/hashmap
cpu: Intel(R) Core(TM) i9-10900K CPU @ 3.70GHz
BenchmarkHashMap/hashmap-set-parallel100-20 1 1586248494 ns/op 116872 B/op 561 allocs/op
BenchmarkHashMap/hashmap-set-parallel1000-20 1 11420826547 ns/op 836576 B/op 4695 allocs/op
BenchmarkHashMap/hashmap-set-get-parallel100-20 1 3255109261 ns/op 47776 B/op 243 allocs/op
BenchmarkHashMap/hashmap-set-get-parallel1000-20 1 17511975838 ns/op 620832 B/op 2966 allocs/op
BenchmarkHashMap/syncmap-set-parallel100-20 1 19082770010 ns/op 2400015608 B/op 199976074 allocs/op
BenchmarkHashMap/syncmap-set-parallel1000-20 1 204721266296 ns/op 29956965176 B/op 2743807276 allocs/op
BenchmarkHashMap/syncmap-set-get-parallel100-20 1 1636063296 ns/op 2400001528 B/op 199975746 allocs/op
BenchmarkHashMap/syncmap-set-get-parallel1000-20 1 19790039965 ns/op 32929943928 B/op 3115775177 allocs/op
BenchmarkHashMap/mutexmap-set-parallel100-20 1 15495332887 ns/op 799877384 B/op 99974948 allocs/op
BenchmarkHashMap/mutexmap-set-parallel1000-20 1 178083314115 ns/op 13960544056 B/op 1743848208 allocs/op
BenchmarkHashMap/mutexmap-set-get-parallel100-20 1 9547300918 ns/op 799986024 B/op 99976220 allocs/op
BenchmarkHashMap/mutexmap-set-get-parallel1000-20 1 143467062246 ns/op 16978766920 B/op 2116287321 allocs/op
hashmap source code is available under the MIT License.