Difference between revisions of "Ceilometer/Units"
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== Ceilometer Units == | == Ceilometer Units == | ||
This page has for goal to normalize the units used in Ceilometer. | This page has for goal to normalize the units used in Ceilometer. | ||
| − | Status: this page | + | Status: this page was approved in the Feb 7th 2013 irc meeting. |
| − | # Whenever a volume is to be measured, [http://en.wikipedia.org/wiki/International_System_of_Units SI approved units] and their approved symbols. | + | # Whenever a volume is to be measured, [http://en.wikipedia.org/wiki/International_System_of_Units SI approved units] and their approved symbols should be used. |
| − | # | + | # For a given sample, unit should NEVER, EVER be changed |
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# When the measurement does not represent a volume, the unit description should always described WHAT is measured (ie: apples, disk, routers, floating IPs, etc) | # When the measurement does not represent a volume, the unit description should always described WHAT is measured (ie: apples, disk, routers, floating IPs, etc) | ||
# If a previous counter exist measuring something similar, the same unit and division should be used as much as possible | # If a previous counter exist measuring something similar, the same unit and division should be used as much as possible | ||
# Samples (aka meters or counters) should always document their units in Ceilometer (API and Documentation) and new sampling code should not be merged without the appropriate documentation. | # Samples (aka meters or counters) should always document their units in Ceilometer (API and Documentation) and new sampling code should not be merged without the appropriate documentation. | ||
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| + | <!-- ## REMOVED 1. The selected division of the unit to be used should be the smallest possible to match the order of magnitude of the measurement and to avoid a much as possible sub units (fractions, 0.XXX values) - Use Kb rathed Mb if your typical measurement is 10 or 100Kb --> | ||
Latest revision as of 23:30, 17 February 2013
Ceilometer Units
This page has for goal to normalize the units used in Ceilometer.
Status: this page was approved in the Feb 7th 2013 irc meeting.
- Whenever a volume is to be measured, SI approved units and their approved symbols should be used.
- For a given sample, unit should NEVER, EVER be changed
- When the measurement does not represent a volume, the unit description should always described WHAT is measured (ie: apples, disk, routers, floating IPs, etc)
- If a previous counter exist measuring something similar, the same unit and division should be used as much as possible
- Samples (aka meters or counters) should always document their units in Ceilometer (API and Documentation) and new sampling code should not be merged without the appropriate documentation.
