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VM very slow during recording

Posted: 28. May 2019, 00:11
by aceask01
hi everyone, I using Virtualbox 6.0 version and I want recording a video about windows, but when I start the machine, the VM be come slow and laggy during recording, and when I turn off recording, the VM become normal.
that really annoying. :x
help me.

Re: VM very slow during recording

Posted: 28. May 2019, 03:54
by socratis
Does your question have anything to do with the VirtualBox API, or is it a generic question? I need to know so that I can treat it accordingly.

In order to better understand the problem you need to submit some more information. Please read the following: Minimum information needed for assistance.

the guest very slow during recording in virtualbox 6.0

Posted: 5. Jul 2019, 09:25
by aceask01
Hi, I have Problem in virtualbox 6.0 when I opens the guest and recording video, the guest become very slow and laggy. and when I shutdown the recording, the guest become faster.
I don't know what can I do.
please help.
this log file for help.
thanks.

Re: VM very slow during recording

Posted: 11. Jul 2019, 14:16
by noteirak
Definitely not API related. Moved to "Using VirtualBox" until we get more info about the setup.

Re: VM very slow during recording

Posted: 11. Jul 2019, 16:05
by socratis
And there was some more information added, albeit in a different post, the one with the log. Merged them with the original, borderline duplicate...

Re: VM very slow during recording

Posted: 11. Jul 2019, 18:49
by mpack
IMHO, this is a question of invalid expectations. The guest is Win95 running on one core, the 16bit base layers not handling multitasking at all well. So by definition any kind of workload is going to cause lag - which is exactly what happened on real hardware back in the day.

Re: VM very slow during recording

Posted: 26. Aug 2020, 22:16
by gim
Sadly this is not because of Windows 95, this is because of bugs inside VirtualBox ticket/19834