Virtualization and E5200

[Boyfriend]

I know that. I read somewhere that VT is needed in situation when we have 32bit host and want to install 64bit guest. Is this true ?

No one can't install 64bit guest under 32bit host. It is technically impossible. How guest can execute it's 64bit instruction while processor is in x86 instruction set mode. While on 64bit host it is possible and in fact fast enough to execute x64+x86 instruction(s) simultaneously.

There is another technical problem for Core2 and its derivatives (dual core series) series under 64Bit OS, which is that it don't have support for micro-ops and macro-ops support for 64Bit instruction sets. So u will naturally see slightly increased processor usage under 64 Bit host OS. Core i7 does have micro + macro-ops support for 64bit as well as better VT instructions set, transparent to the software working on that processor. Core i7 is really Intel (R) milestone as Windows 7 is for Microsoft(R)

OP should specify detailed software configuration (one can check his system specs for hardware information): Linux version used, updates, software(s) version and settings etc...

 

[r9]

I don`t intend to run 64bit guest on 32bit I find that when I was searching for benefits from having VT capable CPU.
@Boyfriend I`v have the same performance at Host:Vista x64 and Ubuntu Guest.
In both situations I have 64bit host and 32bit guest could this be the source of slowdown ?
And once again could I install 64bit guest on 64bit host w/o VT ?

 

[suraswami]

I have E5200 and does not support Intel® Virtualization Technology. I`v had installed vmware under Ubuntu and installed Vista as virtual server. But the lag was terrible. I would guess that is because E5200 is lacking those instructions. And I had trouble finding widows and linux version that would install on VMWARE. I was getting messages that my CPU is not 64 bit. Is this because of my CPU ?

Don't know if someone already mentioned this, did u install the vm tools after u install the OS? That is very much necessary to have a good smooth video display and mouse movement. Also please allocate min 1gb ram for Vista.

Which version of VMWare are you using? I think vmware only gives max 16mb of ram to the vga and thats the reason vista struggles.

I run multiple vms on my server. All my W2K3 server OS VMs are perfect, but I installed Home Server last night and it lags. But if I remote into this machine from another machine it is smooth. So I disabled all the extra fancy features and made it look like W2K3 and its much better.

I am not sure if this is resolved in vm 2.01, I am assuming you are talking about vm ware server.

Also Virtualbox is good if you don't need any auto start features. In Virtualbox u can control the vga ram.

hope it helps.

 

[r9]

So is it possible to install 64bit guest on 64bit host w/o VT ? And this is yes why I get the message that my cpu it is not 64bit ?
I have tried
Host Ubuntu x64 Guest Vista 32bit and
Host Vista X64 and Ubuntu 32bit Is it possible the slowdown is result of Host64 bit vs Guest 32bit ?

 

[suraswami]

So is it possible to install 64bit guest on 64bit host w/o VT ? And this is yes why I get the message that my cpu it is not 64bit ?
I have tried
Host Ubuntu x64 Guest Vista 32bit and
Host Vista X64 and Ubuntu 32bit Is it possible the slowdown is result of Host64 bit vs Guest 32bit ?

So is it possible to install 64bit guest on 64bit host w/o VT - yes

slowdown is because of vm tools.

 

[Boyfriend]

suraswami has pointed our really important thing. Install VM Tools/Addons to have smooth mouse movements + better graphics performance. Disable those fancy things of guest OS and allocate more RAM. Try to use Windows as host OS and then tell us "Does this help u to sort out???"

 

[r9]

suraswami has pointed our really important thing. Install VM Tools/Addons to have smooth mouse movements + better graphics performance. Disable those fancy things of guest OS and allocate more RAM. Try to use Windows as host OS and then tell us "Does this help u to sort out???"

Thanks for the help you saved me time and making wrong conclusions from the net. And I`m going to install CentOS 32bit as host and guests . At the moment I have Win7 and VMWARE as guest. I`m going to install VM tools and add more RAM. I will post when I`m done. Thanks again.

 

[Easy Rhino]

So is it possible to install 64bit guest on 64bit host w/o VT - yes

i really dont think this is possible. could you point me to information saying it is? not baiting an argument, i am just curious because when i was using an 64bit cpu without VT i was unable to run a 64bit guest.

 

[r9]

I just installed the vm-tools and the the vm is running much faster. Another problem if I time slowly typing is OK but if I type faster I get a lot repetitions of the character like I`m holding each character couple seconds. That is weird.

 

[suraswami]

i really dont think this is possible. could you point me to information saying it is? not baiting an argument, i am just curious because when i was using an 64bit cpu without VT i was unable to run a 64bit guest.

I remember reading it somewhere, but I might be wrong, let me find it.