Guest Additions 4.3.2 run significantly slower than 4.1.2 => Fixed in SVN

[Artem S. Tashkinov]

Host OS: Linux 3.12 i686, VirtualBox 4.3.2
Guest OS: Windows XP SP3 i686, vanilla

With 4.1.2 Guest Additions applications run and work faster in 2D than with Guest Additions 4.3.2.

A simple test: run from Win+R mspaint.

With 4.1.2 Paint starts almost instantly.
With 4.3.2 Paint takes at least a second to start.

It's all tested under the same VirtualBox 4.3.2. My CPU is Intel Core i5 2500. All hardware virtualization features are enabled.

[Artem S. Tashkinov]

VBox.log

[sunlover]

Could you please check the CPU load in the guest with 4.3.2 guest additions? Maybe some guest process has a high CPU consumption? Thanks.

[Artem S. Tashkinov]

No, the guest OS is idling in both cases.

[Ramshankar Venkataraman]

Please try this build ​http://www.virtualbox.org/download/testcase/VirtualBox-4.3.3-90777-Win.exe (link expires in ~14 days) We've made a few fixes in this area.

[Artem S. Tashkinov]

Is a there a CentOS 6 i686 rpm and VirtualBox Extension Pack?

[Frank Mehnert]

​Here is the EL6 package and ​here is the corresponding extpack.

[Artem S. Tashkinov]

With build 90796 I cannot spot any slow downs in this usage scenario.

Hopefully the next stable release won't have any further regressions.

This bug report can be safely closed.

Thank you.

[Ramshankar Venkataraman]

Good to know, thanks for testing.