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From Nux! <...@li.nux.ro>
Subject Re: [RFC] Metrics views for CloudStack UI
Date Thu, 12 Nov 2015 22:20:26 GMT
Marcus,

Thanks for the explanation.
In my setup I chose to completely ignore this Ghz thing which may turn up to be a mistake.
I am using the same number for Mhz as for the # of CPU cores, e.g.
CPU (in MHz)	1 MHz

I was just concerned with the CPU weight thingy, but this should work just as well.

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

----- Original Message -----
> From: "Marcus" <shadowsor@gmail.com>
> To: dev@cloudstack.apache.org
> Cc: users@cloudstack.apache.org
> Sent: Thursday, 12 November, 2015 16:13:34
> Subject: Re: [RFC] Metrics views for CloudStack UI

> Hi Nux,
>   The thing about ghz is that it is the unit of capacity for CPU, VMs are
> allocated to hosts according to the number of "cycles" it has.  As a
> customer, I agree, core count is more important. As an admin, if you have a
> single host in a cluster that is using much more CPU than the others and
> want to try to balance, the ghz number for the VM can tell you 1) which VMs
> on a host are the 'biggest' when cgroup throttling kicks in, that is, how
> much of the host CPU share a VM will get, and 2) if that VM will fit on
> another host - the old UI helps you know which hosts don't have capacity
> for a migration, but it doesn't tell you how full each host is and doesn't
> give you this data to know how full you'll make a host if you migrate.
> 
>    Many people will want these metrics to go into a time series system and
> use something like the graphite publisher instead, as that will give better
> visibility into what's going on over time, but this seems like a good
> out-of-the-box solution to expose the data we already have buried in the UI.
> 
> On Thu, Nov 5, 2015 at 9:35 AM, Nux! <nux@li.nux.ro> wrote:
> 
>> Great work Rohit,
>>
>> What I'd like to see:
>> - vCPU list/count for instance metrics (GHz is meaningless to me)
>> - can we make the whole thing wider so we can fit more columns there
>> without that ugly horizontal scroll bar? So much wasted screen space
>>
>> --
>> Sent from the Delta quadrant using Borg technology!
>>
>> Nux!
>> www.nux.ro
>>
>> ----- Original Message -----
>> > From: "Rohit Yadav" <rohit.yadav@shapeblue.com>
>> > To: dev@cloudstack.apache.org
>> > Cc: users@cloudstack.apache.org
>> > Sent: Thursday, 5 November, 2015 14:09:14
>> > Subject: [RFC] Metrics views for CloudStack UI
>>
>> > Hi all,
>> >
>> > The present CloudStack UI hides most of the metrics data such as cpu,
>> memory,
>> > disk, network usage in inner detail views. Such information is critical
>> to find
>> > issues in one’s cloud, for example finding clusters where hosts are
>> failing, or
>> > finding storage pools where disk space has depleted beyond configured
>> global or
>> > cluster thresholds.
>> >
>> > The metrics views for CloudStack UI is an attempt to solve those
>> problems that
>> > brings in several UI enhancements such as sortable tables, new status
>> icons,
>> > methods to control breadcrumb navigation, making UI’s global list* API
>> pagesize
>> > dynamic, a new table widget based on listView widget that is both
>> horizontally
>> > and vertically scrollable, supports cell/threshold coloring, collapsible
>> > columns along with navigation from one view to another and quick-view
>> actions.
>> > For example, currently support navigation are: Zone to Cluster to Host to
>> > Instance to Volumes, and Storage Pool to Volumes.
>> >
>> > The current version implements six resource views for zone, cluster,
>> host,
>> > instance, volume and storage pool (primary storage). The metrics
>> framework
>> > (based on listView widget) would allow developers to write more such
>> view where
>> > information can be densely packed.
>> >
>> > Please checkout the FS (with some screenshots) and the PR;
>> >
>> > FS: https://issues.apache.org/jira/browse/CLOUDSTACK-9020
>> > JIRA: https://issues.apache.org/jira/browse/CLOUDSTACK-9020
>> > PR: https://github.com/apache/cloudstack/pull/1038
>> >
>> > Comments and suggestions?
>> >
>> > Regards,
>> > Rohit Yadav
>> > Software Architect, ShapeBlue
>> >
>> >
>> > [cid:image003.png@01D104EF.CE276C40]
>> >
>> >
>> > M. +91 88 262 30892 |
>> > rohit.yadav@shapeblue.com<mailto:rohit.yadav@shapeblue.com>
>> > Blog: bhaisaab.org<http://bhaisaab.org> | Twitter: @_bhaisaab
>> > ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS
>> >
>> > Find out more about ShapeBlue and our range of CloudStack related
>> services
>> >
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>> http://shapeblue.com/iaas-cloud-design-and-build//>
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