If I want to decrease priority of VM rinning computational tasks on 100% CPU which threads should I renice in order to not "break" completely VM performance? I'm aware of CPU cap but even when machine is running on 3 out of 4 cores (so 75%) host is not really that responsive and load is noticeable. Significantly more than running process hogging 100% CPU on bare host with high nice level.
I have follwong threads:
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8428 8428 ? 00:00:51 VirtualBox
8428 8432 ? 00:00:03 nspr-1
8428 8433 ? 00:00:23 nspr-2
8428 8434 ? 00:00:00 VBoxSVCWatcher
8428 8436 ? 00:00:00 TimerLR
8428 8461 ? 00:00:00 MainHGCMthread
8428 8462 ? 01:03:42 EMT-0
8428 8463 ? 01:25:47 EMT-1
8428 8464 ? 01:24:30 EMT-2
8428 8465 ? 01:12:06 EMT-3
8428 8466 ? 00:00:00 ShClipboard
8428 8467 ? 00:00:00 DragAndDropSvc
8428 8468 ? 00:00:00 GuestPropSvc
8428 8469 ? 00:00:00 GSTPROPNTFY
8428 8470 ? 00:00:00 GuestControlSvc
8428 8473 ? 00:00:09 Timer
8428 8474 ? 00:00:00 PDMNsTx
8428 8475 ? 00:00:00 ShFolders
8428 8483 ? 00:00:00 AioMgr0-F
8428 8484 ? 00:00:02 AioMgr1-N
8428 8486 ? 00:00:01 Port0
8428 8487 ? 00:00:00 ATA-0
8428 8488 ? 00:00:00 ATA-1
8428 8489 ? 00:00:05 INTNET-RECV
8428 8490 ? 00:00:00 INTNET-XMIT
8428 8491 ? 00:00:00 ACPI Poller
8428 9212 ? 00:00:22 nspr-3
8428 9237 ? 00:00:00 SHCLIP
8428 16658 ? 00:00:21 nspr-4