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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Cheers Gao<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span 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 style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Alan<o:p></o:p></span></p>
<p class="MsoNormal"><span 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 [mailto:fengqian.gao@intel.com] <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"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:ZH-CN">Hi, Alan,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:ZH-CN">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;mso-fareast-language:ZH-CN">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;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:ZH-CN">Best Wishes<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:ZH-CN">--fengqian<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><a name="_MailEndCompose"></a><span lang="EN-US" style="color:#1F497D;mso-fareast-language:ZH-CN"><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;mso-fareast-language:ZH-CN">From:</span></b><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:ZH-CN"> 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" style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN">Hi Gao<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN">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 style="font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN">Alan<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN"><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";mso-fareast-language:ZH-CN">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:ZH-CN">
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 style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:ZH-CN">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;mso-fareast-language:ZH-CN">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;mso-fareast-language:ZH-CN">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;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:ZH-CN">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;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:ZH-CN">--fengqian<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
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