openstack/devstack
Code Issues Proposed changes

Add support for running multiple n-cpus for performance testing

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When using the fake VIRT_DRIVER, we can launch an arbitrary number of
instances, the next step for performance testing is running an arbitrary
number of n-cpus. This can be done with the following settings in your localrc

 VIRT_DRIVER=fake
 NUMBER_FAKE_NOVA_COMPUTE=50

This can be used for things like measuring load from n-cpu's periodic tasks.

Change-Id: I40e0f05374e2c10c48ea6b8816ef6e7609b3dc80
This commit is contained in:
Joe Gordon 2013-08-02 02:02:01 +00:00
parent a8ca815b85
commit 2c94ee5237
2 changed files with 8 additions and 0 deletions
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5
lib/nova
View File

@ -722,6 +722,11 @@ function start_nova() {
# The group **$LIBVIRT_GROUP** is added to the current user in this script.
# Use 'sg' to execute nova-compute as a member of the **$LIBVIRT_GROUP** group.
screen_it n-cpu "cd $NOVA_DIR && sg $LIBVIRT_GROUP '$NOVA_BIN_DIR/nova-compute --config-file $NOVA_CONF_BOTTOM'"
elif [[ "$VIRT_DRIVER" = 'fake' ]]; then
for i in `seq 1 $NUMBER_FAKE_NOVA_COMPUTE`
do
screen_it n-cpu "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-compute --config-file $NOVA_CONF_BOTTOM"
done
else
screen_it n-cpu "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-compute --config-file $NOVA_CONF_BOTTOM"
fi

3
stackrc
View File

@ -187,6 +187,9 @@ case "$VIRT_DRIVER" in
LIBVIRT_GROUP=libvirtd
fi
;;
fake)
NUMBER_FAKE_NOVA_COMPUTE=${NUMBER_FAKE_NOVA_COMPUTE:-1}
;;
xenserver)
# Xen config common to nova and neutron
XENAPI_USER=${XENAPI_USER:-"root"}