Bug 632760
| Summary: | RFE: Support for network QoS | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | IBM Bug Proxy <bugproxy> |
| Component: | libvirt | Assignee: | Michal Privoznik <mprivozn> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 6.2 | CC: | acathrow, ajia, aliguori, amoralej, berrange, bsarathy, dallan, dyuan, eblake, erez, gren, iheim, jeder, jjarvis, nobody+PNT0273897, rwu, sbest, xen-maint, xhu |
| Target Milestone: | beta | Keywords: | FutureFeature |
| Target Release: | 6.2 | ||
| Hardware: | x86_64 | ||
| OS: | All | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-0.9.4-rc1-1.el6 | Doc Type: | Enhancement |
| Doc Text: |
Cause: In some scenarios users wants to shape traffic of a VM, its specific NIC or whole virtual network. It is better if this can be done directly via libvirt which sets virtual networks up, brings up VMs than enforcing user to set it up manually after.
Consequence: Users often ran scripts to set up traffic shaping
Change: Network and interface XML definitions were extended so users can specify average, peak and burst rates and libvirt will set them up on network/VM startup.
Result: Users can now set bandwidth limitation via libvirt.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-12-06 10:49:32 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 638197, 643947, 659725, 693512 | ||
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Description
IBM Bug Proxy
2010-09-10 21:21:27 UTC
------- Comment From rsisk.com 2010-10-04 11:14 EDT------- Code Upstream Status: Not Started I'm setting cond nak patch simply to reflect that we will be looking for an upstream patch from IBM if one has not already been submitted. *** Bug 515696 has been marked as a duplicate of this bug. *** ------- Comment From gerhard.stenzel.com 2010-12-07 04:46 EDT------- A basic implementation to support QoS via libvirt/cgroups has been posted to https://www.redhat.com/archives/libvir-list/2010-December/msg00140.html, but no comments have been received so far. ------- Comment From gerhard.stenzel.com 2010-12-14 08:22 EDT------- Given the current state of the discussion on the mailing list, we will defer this feature request to 6.2, but will continue the design and implementation discussion. Adding to the 6.2 tracker. ------- Comment From sglass.com 2011-05-04 11:02 EDT------- This no longer is needed. Please quit on your side *** Bug 696138 has been marked as a duplicate of this bug. *** The RFE is to limit a particular guest interface to a particular bandwidth, e.g, 100MBps. The test is fairly simple: for example, set up a network with greater than 100MBps bandwidth, assign a guest interface and limit it to 100Mbps, and confirm that you get roughly 100Mbps throughput on that interface. Patches available and sent upstream: https://www.redhat.com/archives/libvir-list/2011-June/msg01149.html moving to POST: https://www.redhat.com/archives/libvir-list/2011-July/msg01656.html This patch series add support for setting traffic shaping and policing on both domain's interface and network's virtual bridge. Basically, this is done via 'tc' from iproute2 package. For shaping is HTB used, for policing we need u32 match selector. Both should be available in RHEL-6 kernel. How this works: On an virtual interface which has limits defined a root qdisc are replaced. Ingress root for outbound traffic shaping and egress for inbound. Basically, in inbound traffic policing is applied, on outbound shaping. New qdiscs are set to limit the traffic to rate set in XML. For shaping it is possible to set the size of buffer. Accepted values for rate, peak and burst are integer numbers. Units are kilobytes per second for rate or kilobytes for size. Supported devices are VIR_DOMAIN_NET_TYPE_NETWORK, VIR_DOMAIN_NET_TYPE_BRIDGE and VIR_DOMAIN_NET_TYPE_DIRECT. v0.9.3-295-g2b9efcb
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New Contents:
Cause: In some scenarios users wants to shape traffic of a VM, its specific NIC or whole virtual network. It is better if this can be done directly via libvirt which sets virtual networks up, brings up VMs than enforcing user to set it up manually after.
Consequence: Users often ran scripts to set up traffic shaping
Change: Network and interface XML definitions were extended so users can specify average, peak and burst rates and libvirt will set them up on network/VM startup.
Result: Users can now set bandwidth limitation via libvirt.
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. http://rhn.redhat.com/errata/RHBA-2011-1513.html |