HCRCaaS: A Handwritten Character Recognition Container as a Service Based on QoS Guarantee Algorithm

Algorithm 1

GPE algorithm.

	The pseudocode of the GPE algorithm
	Input:
(1)	Set the current arrival number for each container
(2)	The number of containers in each container host , and is the number of hosts in the system
(3)	The number of CPU cores of the container hosts
(4)	The maximum waiting time
(5)	The container scheduling trigger command , where if launching the new containers, if keeping the containers, and if deleting the containers
(6)	The performance relationship function
(7)	Output: the updating expected waiting time
	Step 1:
	If
	Sorting the index of the container hosts with the number of the containers in on-descender order
	Find the host which has the minimum containers
	Set
	Re-calculate
	Calculate the of the containers in container host from (3)–(7)
	If
	Deleting a container in container host
	Go to Step 3
	Else
	Set
	Repeat Step 1
	End If
	Step 2:
	If
	Sorting the index of the container host with the number of the containers in on-ascender order
	Find the host which has the maximum containers
	Set
	Re-calculate
	Calculate the in container host from (3)–(7)
	If
	Creating a container in container host
	Go to Step 3
	Else
	Set
	Repeat Step 2
	End If
	End If
	Step 3: Updating and adding or deleting the container in the load balance server.