VirtualBox

Custom Query (16363 matches)

Filters
 
Or
 
  
 
Columns

Show under each result:


Results (1201 - 1203 of 16363)

Ticket Resolution Summary Owner Reporter
#11154 duplicate Bad VM to Host Network Performance with Intel NIC or virtio Gevatter Gaul
Description

I'm running VirtualBox 4.2 on a Ubuntu 12.04 LTS 64bit. The machine is a Xeon E1230 Quadcore with 32G ECC RAM. The VM, running Ubuntu 12.04 LTS 64bit, is connected via a Host Adapter. When running a ping from the Host to the VM, everything seems fine and I get an average latency of around 0.2ms. But in the other direction, depending on the configured VM NIC, I get very high ping results. Strangely enough, the problem only exists, when configuring more than one virtual CPU. Here are my measurements:

Average Ping:

VCPUs PCnet-PCI II PCnet-FAST III Intel PRO/1000 MT Desktop Intel PRO/1000 T Server Intel PRO/1000 MT Server Paravirtualized Network 1 0.168 0.183 0.209 0.191 0.206 0.399 2 0.193 0.182 15.987 12.157 10.349 5.327 3 0.179 0.167 12.032 14.052 9.657 5.337 4 0.174 0.176 12.929 13.680 13.627 5.482

mdev:

VCPUs PCnet-PCI II PCnet-FAST III Intel PRO/1000 MT Desktop Intel PRO/1000 T Server Intel PRO/1000 MT Server Paravirtualized Network 1 0.043 0.046 0.040 0.061 0.039 0.055 2 0.085 0.085 16.036 16.390 14.946 4.638 3 0.045 0.046 14.575 16.903 13.330 5.252 4 0.045 0.044 16.286 16.033 16.148 4.881

We see, as soon as I configure more than one VCPU, latency goes through the roof.

vbox guest log and showvminfo output are attached.

#12833 obsolete Bad capture/release behaviour when in fullscreen-mode on 2 of 3 monitors Justice
Description

I use a triple-head Ubuntu system to host a dual-head Windows 7 guest. The third monitor is used primarily for host terminal windows and thunderbird.

When the guest is in full-screen mode, I frequently observe the exact wrong mouse and keyboard capture state. This is usually correlated with a failure to render correctly in the third monitor.

I can sometimes correct the capture state by clicking once on the VirtualBox's auto-hidden system menu. When that doesn't work, I must <host>-F twice to revert to windowed mode and back.

The behaviour is observed more than once per hour. I have seen it with both ATI and NVidia, open source and restricted graphics drivers. Both with 2D acceleration enabled and disabled.

#127 invalid Bad code in CPUM.CPP file scvetic
Description

Code in CPUM.CPP for overload CPUID instruction don't work. Code never been execute, and it is not posible to overload instruction. In OSE version is simple to corect this error.

Batch Modify
Note: See TracBatchModify for help on using batch modify.
Note: See TracQuery for help on using queries.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy