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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Adding operators list, as it might be interesting for them. Please note that some of tested options are not available in nova, i.e., XBZRLE and postcopy-after-precopy.
Regarding postcopy, nova automatically decides whether live migration should be switched to postcopy mode (only if live_migration_permit_post_copy is set to True, by default it is set to False), postcopy-after-precopy is an internal virsh command which is
not exposed through the libvirt API.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Kind Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Pawel Koniszewski<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></a></p>
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<p class="MsoNormal"><a name="_____replyseparator"></a><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Vlad Nykytiuk [mailto:vnykytiuk@mirantis.com]
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<b>Sent:</b> Monday, November 7, 2016 9:35 PM<br>
<b>To:</b> openstack-dev@lists.openstack.org<br>
<b>Subject:</b> [openstack-dev] [nova] Live migrations: Post-Copy and Auto-Converge features research<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222">Hi,<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222">As you may know, currently </span><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;color:black">QEMU</span><span style="font-family:"Arial",sans-serif;color:#222222"> supports
several features that help live migrations to operate more predictively. These features are: auto-converge and post-copy. <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222">I made a research on performance characteristics of these two features, you can find it by the following link:<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><a href="https://rk4n.github.io/2016/08/10/qemu-post-copy-and-auto-converge-features/"><span style="font-family:"Arial",sans-serif">https://rk4n.github.io/2016/08/10/qemu-post-copy-and-auto-converge-features/</span></a><span style="font-family:"Arial",sans-serif;color:#222222"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222">Hope you find it helpful.<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#222222;background:white">Thanks</span><span style="font-family:"Arial",sans-serif;color:#222222"><br clear="all">
</span><o:p></o:p></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:#222222">—</span><span style="font-family:"Arial",sans-serif;color:#222222"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222">Vlad<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#222222"><o:p> </o:p></span></p>
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