[vbox-dev] Plans to support Perf counter virtualization?

Sidharth Kshatriya sid.kshatriya at gmail.com
Thu Oct 20 09:13:15 UTC 2016

Dear Virtualbox Developers,

Are there plans to support performance counter virtualization (aka PMU
virtualization) in VirtualBox ?

This already supported by VMWare for some time now. See
for instance.

This has been discussed in the past with some tentative discussions (
https://forums.virtualbox.org/viewtopic.php?f=1&t=59168 ) but no definitive
view on whether Virtualbox is interested in this / already working on this
/ has decided not to support this...

Allowing PMU virtualization allows some really powerful software (e.g.
http://rr-project.org . Also see https://github.com/mozilla/rr) to be run
in the VM.


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