Tag-Based Automation: Manage VM CPU Priority via assigned tag.
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@john.c Also done! Thanks for all the great input, keep em' coming...
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@johnnezero this could be a plugin in XOA !
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@Pilow Sounds like an awesome idea. Send any details you may have on how to make plugins (if you know how that is).
Adding to the ToDo list - Thanks! -
@Pilow Sounds like an awesome idea. Send any details you may have on how to make plugins (if you know how that is).
Adding to the ToDo list - Thanks!@Pilow Sounds like an awesome idea. Send any details you may have on how to make plugins (if you know how that is).
Adding to the ToDo list - Thanks!Looks like I can help out again just tracked down this past thread on the forums.
https://xcp-ng.org/forum/topic/7202/how-do-i-create-a-new-plugin
How’s your JavaScript (Typescript), JSON etc? These are the languages needed to develop plugins for Xen Orchestra.
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@john.c Thanks much, looking into it.
"Open-Source for the Win!"
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@john.c Thanks much, looking into it.
"Open-Source for the Win!"Your welcome!
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@johnnezero It would be also interesting to take UMA/NUMA into account as VMs -- in particular, VMs with vGPUS -- can run much more efficiently if they do not cross memory bank boundaries that span more than one CPU instance. On some Linux systems -- not sure about the one hosting XCP-ng -- you can even disable NUMA. Just an additional thought here. I published a number of years ago a three-part series "A Tale of Two Servers" discussing a number of related optimizations but alas, the Citrix blogs were eliminated and I'm snot sure where copies of these articles exist anymore. But there are plenty of articles on this, in particular by Frank Denneman, and also ones like the following;
https://indico.cern.ch/event/304944/contributions/1672535/attachments/578723/796898/numa.pdf
https://docs.xenserver.com/en-us/xenserver/9/numa.html -
@johnnezero It would be also interesting to take UMA/NUMA into account as VMs -- in particular, VMs with vGPUS -- can run much more efficiently if they do not cross memory bank boundaries that span more than one CPU instance. On some Linux systems -- not sure about the one hosting XCP-ng -- you can even disable NUMA. Just an additional thought here. I published a number of years ago a three-part series "A Tale of Two Servers" discussing a number of related optimizations but alas, the Citrix blogs were eliminated and I'm snot sure where copies of these articles exist anymore. But there are plenty of articles on this, in particular by Frank Denneman, and also ones like the following;
https://indico.cern.ch/event/304944/contributions/1672535/attachments/578723/796898/numa.pdf
https://docs.xenserver.com/en-us/xenserver/9/numa.htmlIf you remember the URL and date maybe try the wayback machine of Internet Archive. They’re known to archive sites and articles wherever they can, may hold a copy that’s accessible.
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@tjkreidl Wow that all sounds pretty intense - will keep it in mind (but it's probably way above my $0 pay grade - haha). Thanks much!
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@john.c Not found with the Wayback Machine, alas. Still not finding it anywhere else, but will keep looking!
It's a crying shame Citrix didn't preserve the treasure trove of old community blogs.
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