Bug 1104926 – [RFE][nova]: I/O (PCIe) Based NUMA Scheduling

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Bug 1104926 - (input-output-based-numa-scheduling) [RFE][nova]: I/O (PCIe) Based NUMA Scheduling [NEEDINFO]

Summary:	[RFE][nova]: I/O (PCIe) Based NUMA Scheduling

Status:	CLOSED ERRATA

Aliases:	input-output-based-numa-scheduling

Product:	Red Hat OpenStack
Classification:	Red Hat
Component:	openstack-nova (Show other bugs)
Sub Component:
Version:	6.0 (Juno)
Hardware:	All All

Priority	high Severity low
Target Milestone:	z2
Target Release:	6.0 (Juno)
Assigned To:	Nikola Dipanov
QA Contact:	Sean Toner
Docs Contact:

URL:
Whiteboard:	upstream_milestone_kilo-2 upstream_de...
Keywords:	FutureFeature, ZStream

Depends On:
Blocks:	799011 1038706 1077198 1203160 1228267 1250248
	Show dependency tree / graph

Reported:	2014-06-05 00:02 EDT by RHOS Integration
Modified:	2018-02-08 05:17 EST (History)
CC List:	13 users (show)

See Also:
Fixed In Version:	openstack-nova-2014.2.2-10.el7ost
Doc Type:	Enhancement
Doc Text:	Support has been added for intelligent NUMA node placement for guests that have been assigned a host PCI device. PCI I/O devices, such as Network Interface Cards (NICs), can be more closely associated with one processor than another. This is important because there are different memory performance and latency characteristics when accessing memory directly attached to one processor than when accessing memory directly attached to another processor in the same server. With this update, Openstack guest placement can be optimized by ensuring that a guest bound to a PCI device is scheduled to run on a NUMA node that is associated with the guest's pCPU and memory allocation. For example, if a guest's resource requirements fit in a single NUMA node, all guest resources will now be associated with the same NUMA node.
Story Points:	---
Clone Of:
Clones:	1228267 (view as bug list)
Environment:
Last Closed:	2015-04-07 11:09:18 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Flags:	stoner: needinfo? (ndipanov)

Attachments	(Terms of Use)
SRIOV testing (9.25 KB, text/plain) 2015-04-01 15:39 EDT, Sean Toner	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2015:0790	normal	SHIPPED_LIVE	Important: openstack-nova security, bug fix, and enhancement update	2015-04-07 15:07:41 EDT

Groups: None (edit)

Description RHOS Integration 2014-06-05 00:02:12 EDT

Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/input-output-based-numa-scheduling.

Description:

The NUMA locality of I/O devices is another important characteristic to consider when configuring a high performance, low latency system for NFV workloads.
			
This blueprint aims at combining NUMA based PCIe device information with the CPU/NUMA related topology info being developed in" Virt driver guest NUMA node placement & topology" https://blueprints.launchpad.net/nova/+spec/virt-driver-numa-placement . 
					
The proposal is to extend the nova pci_devices database with a NUMA cell field. This will be done in the libvirt driver. 

The NUMA filter (in development) will be extended to query the nova.pci_devices to check on the permitted NUMA allocation.

Specification URL (additional information):

None

Comment 14 Summer Long 2015-03-24 19:39:58 EDT

Done, thank you.

Comment 16 Sean Toner 2015-04-01 15:39:51 EDT

Created attachment 1009835 [details]
SRIOV testing

Comment 22 errata-xmlrpc 2015-04-07 11:09:18 EDT

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-0790.html

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