memory

type Memory struct {
	// Unit is the metric used for all the numbers returned. E.g. kb, mb, gb.
	Unit string

	// Physical memory statistics of the machine.
	Physical struct {
		// Total is the total physical memory of the system.
		Total int64
		// Free is the free physical memory in the system.
		Free int64
		// Used physical memory of the system.
		Used int64
		// Cached is the physical memory that is used for cache.
		Cached int64
		// Buffers is the amount of memory used for file buffers.
		Buffers int64
		// TotalFree is Free memory + Used + Cached which is the real
		// amount of memory that Linux has available
		TotalFree int64
	}

	// Swap is information on swap usage on the system.
	Swap struct {
		// Total swap that is available.
		Total int64
		// Free swap space.
		Free int64
		// Used swap space.
		Used int64
		// Cached is space used for cache
		Cached int64
	}

	// Virtual is the virtual memory used by the machine.
	Virtual struct {
		// Total virtual memory that has been allocated.
		Total int64
		// Used virtual memory.
		Used int64
		// Chunk is the largest chunk that is being used.
		Chunk int64
	}

	// Dirty is the memory waiting to be written back to disk.
	Dirty int64
	// Writeback is the memory currently being written back to disk.
	Writeback int64
	// Mapped is memory used my mmap files.
	Mapped int64
}

type ProcessMemory struct {
	// Swap usage of the Process
	Swap struct {
		// Size of the swap used
		Size int64
		// Unit metric used
		Unit string
	}
}