OS/2, eCS & ArcaOS - Technical > Virtualization

Very poor performance of ArcaOS on VirtualBox 7 on Intel Mac

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Martin Iturbide:
Hi

--- Quote from: DavidR on February 10, 2025, 04:51:44 pm ---Martin - thanks for raising a ticket.

--- End quote ---
DavidR, sorry, but I didn't open up a ticket. Just a forum post at VirtualBox to ask for more feedback with a Mac.

Regards

DavidR:
Martin - sure, no problem. That's what I meant.

Martin Iturbide:
Hello

Supposedly in MacOS the VirtualBox logs should be on "$HOME/Library/VirtualBox"
Check out if there is something readable, or share it on the VirtualBox forum to see if someone has a hint.

Regards

JTA:
Perhaps you can dig deep into the vbox manual for the version of vbox you want to run on mac.

Inside the release of the docs for your version, there is specifically Chp 04, and additionally other chapters and pointers to all the release notes, changes & limitations. Perhaps all of this will show something you'll recognize for why things changed under mac & vbox versions you ended up on.

Might even be worthwhile to read the VMware docs on the same subjects, to see why a VM might run better on VMware.

I still don't understand exactly what piece of perf dropped on your vbox setup ... is it specifically cpu, ram, disk, network? Vbox windowing (of the OS/2 guest)? Seamless mouse support between vbox and guest? If reading the docs didn't catch the new limitation for you, then more utility testing of each piece inside AOS might narrow things down to the culprit.

Generically, you say it is unusable or similar, but you might have to dig deeper to see what piece is giving you the most grief. With that identified, perhaps the vbox docs for 7.1.6 will show you why it changed, or will point you at a specific VM setting that helps, until they sort out something better with a future release.

For myself, I must have guest additions (GA tools) for OS/2, for many of my OS/2 efforts & projects, and that pretty much rules out VMware or other virt platforms, leaving only Virtualbox for me. Specifically, I must have the Host/VM shared folders functionality.

However, from all I'm reading and catching up on (what additional features are supported by installing GA tools, what features are native w/o the guest tools, etc.), if you really don't need the GA tools, perhaps you can switch to VMware. As Mac is Linux these days, perhaps other virt platforms can be used?

Hope this helps ...

DavidR:
JTA - Thanks for your response.  I've had a look at the VirtualBox documentation and I didn't see any clues as to why it would be suddenly slow. I might research the VMWare side if I get a chance.

It is probably graphics-related, but I'm not sure. The cpuspeed results are slower than expected even with no graphics activity happening. Maybe the graphics drivers are stealing a lot of CPU that would otherwise be used to contribute to the calcs cpuspeed is doing? I don't know enough about this area.

Martin - I've replied on the post you created on the VirtualBox forum and provided an explanation, a log file and some screenshots of cpuspeed numbers I am getting.  I think they'll appear once moderated. Hopefully we will get somewhere.

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