Task Scheduling for Edge Computing with Agile VNFs On-Demand Service Model toward 5G and Beyond

Table 1

Pull performance test results for different VNFs.

Image Types	VNFs	Image Size (MB)	Physical Gateway Cost (seconds)	Cloud Network Broker Cost (seconds)
System images	ubuntu	112	22.095	7.918
	centos	207	24.319	8.926
	debian	207	21.635	5.646
Tool images	golang	779	86.793	18.51
	flask	458	62.22	16.33
	prometheus	112	24.14	4.737
Service images	httpd	177	20.753	1.031
	nginx	109	13.216	4.778
	bind	337	84.38	15.105
	squid	215	150.031	9.973
	mysql	374	24.852	10.449
	mongodb	503	61.347	17.116
Application images	wordpress	407	32.866	13.213
	drupal	452	81.39	14.405