diff --git a/scripts/vagrant/local.conf b/scripts/vagrant/local.conf
index 1449e1563..f392d4bbb 100644
--- a/scripts/vagrant/local.conf
+++ b/scripts/vagrant/local.conf
@@ -19,11 +19,11 @@ public_interface=eth0
 
 [[test-config|$TEMPEST_CONFIG]]
 [compute]
-build_timeout = 1200
+build_timeout = 1500
 fixed_network_name = net0
 
 [volume]
-build_timeout = 1200
+build_timeout = 1500
 
 [validation]
 ssh_timeout = 396
@@ -47,4 +47,5 @@ target_helper = spdk-nvmeof
 target_prefix = nqn.2014-08.org.spdk
 volume_driver = cinder.volume.drivers.spdk.SPDKDriver
 volume_backend_name = SPDK
-spdk_max_queue_depth = 32
+spdk_max_queue_depth = 64
+image_volume_cache_enabled = True
diff --git a/test/openstack/install_devstack.sh b/test/openstack/install_devstack.sh
index c6cdb3a07..2b90ac7af 100755
--- a/test/openstack/install_devstack.sh
+++ b/test/openstack/install_devstack.sh
@@ -44,6 +44,7 @@ fi
 cp $rootdir/scripts/vagrant/local.conf /opt/stack/devstack/local.conf
 
 cd /opt/stack/devstack
+sudo sed -i "s|http://download.cirros-cloud.net|https://download.cirros-cloud.net|g" stackrc
 su -c "./stack.sh" -s /bin/bash stack
 source openrc admin admin
 openstack volume type create SPDK --public