VirtualBox

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Ticket Resolution Summary Owner Reporter
#35 fixed timing probleme with AMD X2 jens
Description

There are timing problems on WinXP with a AMD X2 dual core runing ubuntu dapper.

Only work-a-round: selecting only one core in the task manager for "VirtualBox.exe"

look at: http://www.virtualbox.org/discussion/2/41 (de)

#7814 fixed time remaining estimate for >55s & < 1min = 0 minutes => Fixed in SVN timeless
Description

Saving/Restoring a VM (1gb of ram for the VM) results in a progress estimate which goes:

1s...55s; 0min 0min 0min 0min 1min ...

The code to handle this already has access to the variables it's going to use for presentation, so instead of doing fancy (and bad) math, it should just use them.

Also, the use of QDateTime is really wasteful especially as it deals in time zone magic.

#3135 fixed time inside guest fluctuates Costin Grigoras
Description

Host:

OS: Ubuntu 8.10, 64bit, VirtualBox 2.1.2 (was also 2.1.0 and had the same problems) HW: HP DL360 G5, dual Xeon X5450, 16GB RAM

Guest: 64bit

OS1: Scientific Linux CERN 4.7 (Fedora Core 3), Kernel 2.6.9-78.0.8.EL.cern OS2: Scientific Linux CERN 5.2 (Fedora Core 6), Kernel 2.6.18-92.1.18.el5

Time is running too fast inside the guest, and vboxadd-timesync keeps bringing it back. Below is a sequence of commands ran at ~1sec interval:

# date
Fri Jan 23 23:55:33 CET 2009
# date
Fri Jan 23 23:55:35 CET 2009
# date
Fri Jan 23 23:55:37 CET 2009
# date
Fri Jan 23 23:55:34 CET 2009
# date
Fri Jan 23 23:55:36 CET 2009

Guest: 32bit

Same OSs, but 32bit installations

Here the time flows correctly only if the guest OS is busy. If the guest is idle, time flows very slowly and the time sync daemon brings it forward a lot.

Other remarks:

Guest additions are installed and have the same version as the host virtualbox installation.

CPU frequency scaling is disabled, all cores run at full speed.

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