UTM seems to run slower than Parallels Desktop on Apple Silicon

[mjonsson1986]

if you compare e.g parallels speed with utm
parallels run with near native speed
utm are litle slower iven if you run with virtualization=on
why?
i think both uses mac os virtualization engine?

[conath]

@mjonsson1986 It would be interesting to compare the speed with some tests. Are you able to test e. g. starting a Windows ARM guest in Parallels and UTM and measure the time it takes? Maybe a CPU benchmark?

[mjonsson1986]

i dont own parallels anymore

…

24 nov. 2021 kl. 21:17 skrev CONATH ***@***.***>: @mjonsson1986 <https://github.com/mjonsson1986> It would be interesting to compare the speed with some tests. Are you able to test e. g. starting a Windows ARM guest in Parallels and UTM and measure the time it takes? Maybe a CPU benchmark? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#3330 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGEUP5IKLKRIAFCC2K5RAK3UNVB6PANCNFSM5IROGO5A>. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[brunocastello]

Both don't emulate the exact same configuration, so it is hard to know what exactly is different...

[mjonsson1986]

emulation? qemu dont emulate arm if you run a arm device

…

26 nov. 2021 kl. 15:09 skrev Si13ntV0ice ***@***.***>: virtualization VS emulation .... real hardware multi core vs soft-single-emulated-cpu ? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#3330 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGEUP5JMRQSGVC3SAQZQ5C3UN6IJFANCNFSM5IROGO5A>. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[brunocastello]

correct, but the hardware being virtualized/emulated is not the same between qemu and parallels, hence why there may be a performance difference, as well as methods used by them to use the hypervisor must be different as well for that difference to happen.

[AwlsomeAlex]

@conath I own Parallels Standard (4 vcore, 8GB RAM), what type of benchmarks do you want to see?

[conath]

Any CPU and I/O related tests would be interesting. If possible, a few tests that can be also run natively on your Mac, too.

For example CineBench, CrystalDiskMark (not sure what a Mac equivalent would be).

[jjangga0214]

@AwlsomeAlex May I ping?

[adespoton]

Geekbench scores from both would be interesting.

Because it's different hardware configurations, drivers etc, I'd expect some things to be faster and others slower.

[osy]

Parallels also has GPU acceleration…

[jjangga0214]

@osy utm provides experimental hardware GPU acceleration by OpenGL.

[osy]

Not on windows which is what I presume we are talking about