32-bit64-bitArchitecturecpu
I'm looking at an Intel spec sheet. It says that the processor has a 64-bit instruction set. However, running:
uname -m
results in i686, and running:
grep flags /proc/cpuinfo
indicates that each processor has a tm flag and not an lm flag.
Does this processor support 64-bit operating systems? If not, what's the difference between what's being said and what is actually the case?
Elaborating on my comment above the T2310 lacks Virtualization extensions (VT-x) as per your CPU datasheet at http://ark.intel.com/Product.aspx?id=32431
From this Wikipedia article, there are three basic things that will be causing a measurable degradation in performance of the VM (and therefore an increase in CPU usage on the host:
Binary translation is used to rewrite certain instructions, like POPF, that would otherwise fail silently or behave differently when executed above ring 0 making the classic trap-and-emulate virtualization impossible. To improve performance, the translated basic blocks need to be cached in a coherent way that detects code patching (used in VxDs for instance), the reuse of pages by the guest OS, or even self-modifying code.
A number of key data structures used by a processor need to be shadowed. Because most operating systems use paged virtual memory, and granting the guest OS direct access to the MMU would mean loss of control by the virtualization manager, some of the work of the x86 MMU needs to be duplicated in software for the guest OS using a technique known as shadow page tables. This involves denying the guest OS any access to the actual page table entries by trapping access attempts and emulating them instead in software.
I/O device emulation: Unsupported devices on the guest OS must be emulated by a device emulator that runs in the host OS.
A guest operating system has a large overheard for operations that require the use of privileged instructions that are required and typically these overheads are heavily mitigated by the use of Intels VT-x and AMDs AMD-V virtualisation extensions. Your processor lacks these extensions and so all the work of capture and emulation will cause some performance loss.
My recomendations would be:
To give the virtual machine as much memory as it needs to minimise the amount of paging that needs to be done, perhaps 1GB or more depending on your workloads.
Disable the 3D acceleration as all the calls to the 3D driver may well have to be pushed through the emulation layer and so may be expensive on your processor.
Install the Virtualbox Guest Additions for your guest operating system as these will use drivers that better support the virtual environment.
Reduce the screen resolution and graphical options in your guest operating system.
Keep network (internet) access to a reasonable level, heavily network bound virtual machines are expensive even with VT-x and benefit from VT-d (Virtualization Technology for Directed I/O) as well, which is also not supported by your processor.
Download the required Windows 7 32bit or 64bit HP Universal Printer Driver PCL6 (UPD) from the HP Website.
Install the driver using “Traditional mode”.
Go to “Printer Properties” -> “Device Settings” of the printer and scroll to the bottom.
Change “Device Type” setting from “Automatic” to “Color”
The "Color" tab will now be available under Printing Preferences of the printer.
Additional Information:
If you are sharing the USB printer over your network specifically for Windows 7 clients, you have to change the same “Device Type” setting as above for each client’s printer driver to enable colour printing to the shared printer.
Best Answer
The official Intel specs indicate that the processor is 64-bit.
However, you are running a 32-bit operating system, which explains
i686and the absence of thelm(long mode—the 64-bit operating mode of an x86-64 processor) flag.tmrefers to thermal monitor support and has nothing to do with 64-bit support.In your case, it looks like the manufacturer of the computer has disabled 64-bit support, which means you probably need to purchase another computer to be able to install a 64-bit operating system.