Custom Query (16363 matches)
Results (1201 - 1203 of 16363)
| Ticket | Resolution | Summary | Owner | Reporter |
|---|---|---|---|---|
| #11154 | duplicate | Bad VM to Host Network Performance with Intel NIC or virtio | ||
| 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:
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. |
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| #12833 | obsolete | Bad capture/release behaviour when in fullscreen-mode on 2 of 3 monitors | ||
| 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. |
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| #127 | invalid | Bad code in CPUM.CPP file | ||
| 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. |
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