openstack/ceilometer
Code Issues Proposed changes

re-add cpu_util metric to measurement list

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- it was wrongly removed by bug 1597621.
- add note to mention you don't necessarily need rate_of_change if
using Gnocchi

Change-Id: I352cfcebca559b5e47502e2818e62854b971e3ff
This commit is contained in:
gord chung
2017-10-02 15:21:27 +00:00
parent ad933a0b63
commit f5d58d5c42
1 changed files with 10 additions and 2 deletions
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12
doc/source/admin/telemetry-measurements.rst
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@@ -123,8 +123,9 @@ The following meters are collected for OpenStack Compute.
| | | | ID | | Hyper-V | ince previous d\ |
| | | | | | | atapoint |
+-----------+-------+------+----------+----------+---------+------------------+
| cpu_util | Gauge | % | instance | Pollster | vSphere,| Average CPU |
| | | | ID | | XenAPI | utilization |
| cpu_util | Gauge | % | instance | Pollster | LibVirt,| Average CPU |
| | | | ID | | vSphere,| utilization |
| | | | | | XenAPI | |
+-----------+-------+------+----------+----------+---------+------------------+
| vcpus | Gauge | vcpu | instance | Notific\ | Libvirt,| Number of virtual|
| | | | ID | ation | Hyper-V | CPUs allocated to|
@@ -401,6 +402,13 @@ above table is the following:
To enable libvirt ``disk.*`` support when running on RBD-backed shared
storage, you need to install libvirt version 1.2.16+.
.. note::
If storing data in Gnocchi v4.1+, derived rate_of_change metrics can be
computed using Gnocchi rather than Ceilometer transformers. This will
minimize Ceilometer memory requirements and avoid missing data when
Ceilometer services restart.
OpenStack Compute is capable of collecting ``CPU`` related meters from
the compute host machines. In order to use that you need to set the
``compute_monitors`` option to ``cpu.virt_driver`` in the