+PACKAGES="
+dist_ro_plugin
+dist_ng_ro
+dist_ro_sdn_arista_cloudvision
+dist_ro_sdn_dpb
+dist_ro_sdn_dynpac
+dist_ro_sdn_floodlight_of
+dist_ro_sdn_ietfl2vpn
+dist_ro_sdn_juniper_contrail
+dist_ro_sdn_odl_of
+dist_ro_sdn_onos_of
+dist_ro_sdn_onos_vpls
+dist_ro_vim_aws
+dist_ro_vim_azure
+dist_ro_vim_openstack
+dist_ro_vim_openvim
+dist_ro_vim_vmware
+dist_ro_vim_gcp"
+
+TOX_ENV_LIST="$(echo $PACKAGES | sed "s/ /,/g")"
+PROCESSES=$(expr `nproc --a` / 2)