mem

type MemoryStats struct {
	Total     uint64 `json:"total"`      // the total accessible system memory in bytes.
	Free      uint64 `json:"free"`       // the total free system memory in bytes.
	Shared    uint64 `json:"shared"`     // the total shared system memory in bytes.
	Buffer    uint64 `json:"buffer"`     // the total buffer system memory in bytes.
	Cached    uint64 `json:"cached"`     // the total cached system memory in bytes.
	SwapTotal uint64 `json:"swap_total"` // the total swap memory in bytes.
	SwapFree  uint64 `json:"swap_free"`  // the total free swap memory in bytes.
}