

(sudo perf record -p -g -o sample.perf - sleep 30): No luck.Ģ) Tried disabling/enabling Video acceleration in VM's config.ģ) Tried switching Perferences->Memory-> Fit all guest mem, disableĤ) Tried switching off paging file in Win10 guest and Ubuntu host.ĥ) Tried splitting VMs to different windows instead of openingĦ) Tried capturing perf when the bug is appearing Ubuntu is not.ġ) Tried replacing SSD with brand new one.

Sometimes it takes one day for this bug to appear. This bug appears sometimes after some hours after reboot. On host (as well as inĪnother VM running Ubuntu guest) everything is fine. On host, htop shows all cores is ~100% loaded. Guest Win10 recognizes it as 'System Idle' eating ~40% cpu time. Since I updated my Ubuntu 20.x to 21.x this bug has appeared. First I read all the topics about high cpu load and none of them
