Oracle VirtualBox VBoxHeadless Process Is Using More Than 100% CPU. Why Is This ?
(Doc ID 1499652.1)
Last updated on JANUARY 05, 2021
Applies to:Oracle Virtual Desktop Infrastructure - Version 3.4 to 3.5.1 [Release 3.0]
Oracle VM VirtualBox - Version 4.0 to 4.3 [Release 4.0]
Information in this document applies to any platform.
In an Oracle Virtual Desktop Infrastructure (VDI) cluster in which VirtualBox is used as the Desktop Provider and running on a separate multi-core server, a look at the CPU usage of the VBoxHeadless process shows it as using more than 100% CPU. This could be from "top" or "prstat" etc.
An example output from "top":
While this could identify an issue, the reason for this high CPU usage needs to be understood first, and this article attempts to example a possible reason.
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