VirtualBox

Opened 7 years ago

Closed 7 years ago

#16518 closed defect (worksforme)

5.1.14 verry slow on 4770k (5.1.12 and older are faster)

Reported by: LMS23 Owned by:
Component: guest additions/x11/graphics Version: VirtualBox 5.1.14
Keywords: 4770k display graphic 3D acceleration Cc:
Guest type: all Host type: Windows

Description

Since the update to 5.1.14, my virtual machines are slower than before.

It affects both Windows (Win7 and Win10) and Linux (Ubuntu/Lubuntu 16.10) guests.

It is mainly about the user interface, this is noticeably slower. I tried it with and without 3D acceleration.

After a downgrade of the VirtualBox (5.1.12 or older) the systems are faster again.

My Setup:

  • Intel i7 4770k @ 4 Ghz
  • 32 GB RAM (4x8)
  • GA-Z87X-OC
  • All VM Disks on SSD
  • Windows 10 PRO 1607

Attachments (4)

VBox_16518_5114.log (123.1 KB ) - added by LMS23 7 years ago.
Logfile WIN10 VM with 5.1.14
VBox_16518_5112.log (123.1 KB ) - added by LMS23 7 years ago.
Logfile WIN10 VM with 5.1.12
VBox_16518_5114_Lubuntu.log (157.2 KB ) - added by LMS23 7 years ago.
Logfile Lubuntu 16.10 VM with 5.1.14
2017-05-06 14_00_47-Avast Internet Security.png (35.0 KB ) - added by LMS23 7 years ago.
AVAST - Hardwaree-unterstützte Virtualisierung aktivieren

Download all attachments as: .zip

Change History (10)

comment:1 by Frank Mehnert, 7 years ago

I assume that you did not change any VM setting after upgrading from 5.1.12 to 5.1.14? Please attach a VBox.log file of at least one VM which you run with VBox 5.1.14. In ideal case also the VBox.log file from the same VM running on VBox 5.1.12.

by LMS23, 7 years ago

Attachment: VBox_16518_5114.log added

Logfile WIN10 VM with 5.1.14

by LMS23, 7 years ago

Attachment: VBox_16518_5112.log added

Logfile WIN10 VM with 5.1.12

by LMS23, 7 years ago

Attachment: VBox_16518_5114_Lubuntu.log added

Logfile Lubuntu 16.10 VM with 5.1.14

comment:2 by Frank Mehnert, 7 years ago

Thanks for the logs. So far I have no real idea. I cannot imagine how a 5.1.14 change could have such an influence to the experienced performance.

I saw that with the 5.1.12 VM large pages were disabled because it took too long to allocate them (probably host memory too fragmented, nothing unusual). Could you try if the VM performs better if you do

VBoxManage modifyvm "Ubuntu x64" --largepages off

before you start your VM?

comment:3 by LMS23, 7 years ago

The problem is not the overall performance. The problem is the user interface and video performance. Now view a youtube video in a virtual machine is not possible. And the entire work does not smooth!

Last edited 7 years ago by LMS23 (previous) (diff)

comment:4 by LMS23, 7 years ago

Update: With the new windows update (1703, Build 15063.13) its better but not like before. Can the 4770k be the problem? (the K have not all Virtualization Technology)

comment:5 by LMS23, 7 years ago

Found the error. Was NOT Virtual Box, was "Avast Internet Security".

See here https://forum.avast.com/?topic=196714.0 and https://forum.avast.com/index.php?topic=131508.msg974706#msg974706

"To solve this problem just uncheck "hardware virtualization" checkbox on AvastUI troubleshooting page. (reboot is required to propagate this setting change)"

"Um das Problem zu beheben einfach den Haken bei "Hardware-unterstützte Virtualisierung aktivieren" raus nehmen und neu starten (Neustart ist Pflicht)"

Then the VMs work again as desired. Now is only the question whether one can clarify that BOTH works. So the virtual machines and also the complete range of functions of AVAST.

by LMS23, 7 years ago

AVAST - Hardwaree-unterstützte Virtualisierung aktivieren

comment:6 by Frank Mehnert, 7 years ago

Resolution: worksforme
Status: newclosed

Thanks for this information. So I will close this ticket.

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