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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Yes, Alan, you got me.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Providing power/temperature to scheduler, set threshold or different weight, then the scheduler can boot VM on the most suitable node.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">--fengqian<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></a></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Alan Kavanagh [mailto:alan.kavanagh@ericsson.com]
<br>
<b>Sent:</b> Friday, December 20, 2013 11:58 AM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [Nova] [Ironic] Get power and temperature via IPMI<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D">Cheers Gao<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D">It definitely makes sense to collect additional metrics such as power and temperature, and make that available for selective decisions you would want to take. However, I am just
wondering if you could realistically feed those metrics as variables for scheduling, this is the main part I feel is questionable. I assume then you would use temperature &|| power etc to gauge if you want to schedule another VM on a given node when a given
temperature threshold is reached. Is this the main case you are thinking of Gao?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D">Alan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="margin-left:36.0pt;text-align:left"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Gao,
Fengqian [<a href="mailto:fengqian.gao@intel.com">mailto:fengqian.gao@intel.com</a>]
<br>
<b>Sent:</b> December-18-13 10:23 PM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [Nova] [Ironic] Get power and temperature via IPMI<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="margin-left:36.0pt;text-align:left"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D">Hi, Alan,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D">I think, for nova-scheduler it is better if we gather more information. And In today’s DC, power and temperature are very important facts to considering.
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D">CPU/Memory utilization is not enough to describe nodes’ status. Power/inlet temperature should be noticed.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D">Best Wishes<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D">--fengqian<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="margin-left:36.0pt;text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Alan Kavanagh [<a href="mailto:alan.kavanagh@ericsson.com">mailto:alan.kavanagh@ericsson.com</a>]
<br>
<b>Sent:</b> Thursday, December 19, 2013 2:14 AM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [Nova] [Ironic] Get power and temperature via IPMI<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="margin-left:36.0pt;text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D">Hi Gao<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D">What is the reason why you see it would be important to have these two additional metrics “power and temperature” for Nova to base scheduling on?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D">Alan<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-CA" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="margin-left:72.0pt;text-align:left"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Gao,
Fengqian [<a href="mailto:fengqian.gao@intel.com">mailto:fengqian.gao@intel.com</a>]
<br>
<b>Sent:</b> December-18-13 1:00 AM<br>
<b>To:</b> <a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a><br>
<b>Subject:</b> [openstack-dev] [Nova] [Ironic] Get power and temperature via IPMI<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="margin-left:72.0pt;text-align:left"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt">Hi, all,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt">I am planning to extend bp
<a href="https://blueprints.launchpad.net/nova/+spec/utilization-aware-scheduling">
https://blueprints.launchpad.net/nova/+spec/utilization-aware-scheduling</a> with power and temperature. In other words, power and temperature can be collected and used for nova-scheduler just as CPU utilization.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt">I have a question here. As you know, IPMI is used to get power and temperature and baremetal implements IPMI functions in Nova. But baremetal driver is being split out
of nova, so if I want to change something to the IPMI, which part should I choose now? Nova or Ironic?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt">Best wishes<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt">--fengqian<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
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