• thread safe and high performance read and write
• sharding mechanism to reduce lock range
• read-write lock to improve concurrency
• murmurHash to make the distribution more reasonable
• support user program to customize the number of shard
• provide operations including create, get, set, del, count, exists

go get "github.com/xiao7737/concurrentMap"

 // Init map (recommend to take an alias)
 cm := concurrentMap.CreateConcurrentMap(32)
 // Add or update
 cm.Set(ConvertStr("hello"), "go")
 // Get kv
 res, ok := cm.Get(ConvertStr("hello")) 
 // Del kv
 cm.Del(ConvertStr("hello"))

image

• Batch setting operation

• See more details through test file: concurrent_map_test.go
• Get performance comparison:
  go test -bench=.