RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 800366 - libvirt does not report the system and user cpu usage separately for vms.
Summary: libvirt does not report the system and user cpu usage separately for vms.
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: libvirt
Version: 6.2
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Gunannan Ren
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks: 800367 800372
TreeView+ depends on / blocked
 
Reported: 2012-03-06 12:02 UTC by Yaniv Lavi
Modified: 2012-06-20 06:49 UTC (History)
10 users (show)

Fixed In Version: libvirt-0.9.10-7.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 800367 (view as bug list)
Environment:
Last Closed: 2012-06-20 06:49:42 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2012:0748 0 normal SHIPPED_LIVE Low: libvirt security, bug fix, and enhancement update 2012-06-19 19:31:38 UTC

Description Yaniv Lavi 2012-03-06 12:02:45 UTC 
Description of problem:
In RHEVM 3.0 the history database vm system cpu usage is always 0. This is because libvirt do not report the system and user cpu usage separately and vdsm send all the vm cpu usage as user cpu only. Need to add this separation.
Comment 2 Yaniv Lavi 2012-03-06 12:50:55 UTC 
System usage is an important statistic to troubleshoot various performance
related problems. So i think it's very important to have this.
Comment 3 Eric Blake 2012-03-09 17:37:46 UTC 
Upstream patch proposed:
https://www.redhat.com/archives/libvir-list/2012-March/msg00404.html
Comment 4 Eric Blake 2012-03-12 22:42:25 UTC 
In POST:
http://post-office.corp.redhat.com/archives/rhvirt-patches/2012-March/msg01167.html
Comment 7 Daniel Veillard 2012-03-13 09:04:12 UTC 
Note that the C API part is now included in libvirt-0.9.10-5.el6
but the bug is not finished as the python bindings are still missing

Daniel
Comment 8 Gunannan Ren 2012-03-14 06:03:27 UTC 
Upstream patch sent:
https://www.redhat.com/archives/libvir-list/2012-March/msg00583.html
Comment 9 Eric Blake 2012-03-23 19:35:02 UTC 
In POST:
http://post-office.corp.redhat.com/archives/rhvirt-patches/2012-March/msg02065.html
Comment 12 Wayne Sun 2012-03-28 06:22:24 UTC 
packages:
libvirt-0.9.10-8.el6.x86_64
qemu-kvm-0.12.1.2-2.265.el6rhev.x86_64
kernel-2.6.32-251.el6.x86_64
libvirt-python-0.9.10-8.el6.x86_64

steps:
1. prepare a running domain
2. check with python

# python
Python 2.6.6 (r266:84292, Sep 12 2011, 14:03:14) 
[GCC 4.4.5 20110214 (Red Hat 4.4.5-6)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import libvirt
>>> conn = libvirt.open(None)
>>> dom = conn.lookupByName("rhel6u2")
>>> dom.getCPUStats(True, 0)
[{'cpu_time': 31014583290L, 'system_time': 11450000000L, 'user_time': 1210000000L}]
>>> dom.getCPUStats(False, 0)
[{'cpu_time': 15015195428L}, {'cpu_time': 11334981960L}, {'cpu_time': 2948233412L}, {'cpu_time': 1722428230L}]

3. check with virsh
# virsh cpu-stats rhel6u2 --total --start 0 --count 4
CPU0:
	cpu_time            15.321903938 seconds
CPU1:
	cpu_time            11.410812819 seconds
CPU2:
	cpu_time             2.948269295 seconds
CPU3:
	cpu_time             1.724287630 seconds
Total:
	cpu_time            31.405273682 seconds
	user_time            1.310000000 seconds
	system_time         12.860000000 seconds
Comment 14 errata-xmlrpc 2012-06-20 06:49:42 UTC 
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/RHSA-2012-0748.html
Note You need to log in before you can comment on or make changes to this bug.