Sahid Orentino Ferdjaoui
d52ceaf269
Users need to mark as reserved some amount of pages for third party components. The most common use case for using huge/large pages is NFV. In the current state of that feature we can't guarantee the necessary amount of pages to allow OVS-DPDK to run properly on the compute node, which result in the instance failing to boot on a well selected compute-node. OVS-DPDK needs 1 GB hugepages reserved. Since Nova does not take into account that page reserved for OVS-DPDK it results in the process not being able to acquire the necessary memory which results in a failed boot. This commit adds a new option 'reserved_huge_pages' which takes a list of string format to select on which host NUMA nodes and from which pagesize we want to reserve a certain amount of pages. It also updates NUMAPageTopology to contain a reserved memory pages attribute, which helps compute the available pages size on host for scheduling/claiming resources. Change-Id: Ie04d6362a4e99dcb2504698fc831a366ba746b44 Closes-Bug: #1543149
OpenStack Nova README ===================== OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of virtualization technologies, including KVM, Xen, LXC, VMware, and more. In addition to its native API, it includes compatibility with the commonly encountered Amazon EC2 and S3 APIs. OpenStack Nova is distributed under the terms of the Apache License, Version 2.0. The full terms and conditions of this license are detailed in the LICENSE file. Nova primarily consists of a set of Python daemons, though it requires and integrates with a number of native system components for databases, messaging and virtualization capabilities. To keep updated with new developments in the OpenStack project follow `@openstack <http://twitter.com/openstack>`_ on Twitter. To learn how to deploy OpenStack Nova, consult the documentation available online at: http://docs.openstack.org For information about the different compute (hypervisor) drivers supported by Nova, read this page on the wiki: https://wiki.openstack.org/wiki/HypervisorSupportMatrix In the unfortunate event that bugs are discovered, they should be reported to the appropriate bug tracker. If you obtained the software from a 3rd party operating system vendor, it is often wise to use their own bug tracker for reporting problems. In all other cases use the master OpenStack bug tracker, available at: http://bugs.launchpad.net/nova Developers wishing to work on the OpenStack Nova project should always base their work on the latest Nova code, available from the master GIT repository at: https://git.openstack.org/cgit/openstack/nova Developers should also join the discussion on the mailing list, at: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev Any new code must follow the development guidelines detailed in the HACKING.rst file, and pass all unit tests. Further developer focused documentation is available at: http://docs.openstack.org/developer/nova/ For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst file. -- End of broadcast