Proxmox Hypervisor, vCPU, RAM... etc

[Stephen Partington]

Hit reply too soon. You can share or overprovision ram but you have to
enable some features and load a couple of os level drivers to make it work.

On Fri, Oct 7, 2022, 9:22 PM Stephen Partington <cryptworks at gmail.com>
wrote:

> And you can share ram across containers not vms.
>
> On Fri, Oct 7, 2022, 9:21 PM Stephen Partington <cryptworks at gmail.com>
> wrote:
>
>> i love proxmox.have used it fir years
>>
>> The vcou is socket x cores x2 if you have hyperv/smt
>>
>> So a 4 core ht cpu would be 8vcpu.
>>
>> On Fri, Oct 7, 2022, 7:35 PM Keith Smith via PLUG-discuss <
>> plug-discuss at lists.phxlinux.org> wrote:
>>
>>>
>>> Hi,
>>>
>>> I just watched a video that covered the Proxmox Hypervisor.  Seems
>>> simple enough.  I've used Oracle's VirtualBox for years.
>>>
>>> So I did some research on what a vCPU is.  I was suppressed.  The math
>>> given was (Threads x Cores) x Physical CPU = Number vCPU.
>>>
>>> I have an old laptop that has 1 socket, 2 cores, four threads, and 4GB
>>> of RAM.
>>>
>>> Given the math (4 x 2) x 1 = 8 vCPUS.  Is this correct?
>>>
>>>  From my reading it appears that RAM is not shared, so my bottleneck is
>>> RAM not cores or threads.
>>>
>>> I am a PHP developer and a local vps would need 2GB of RAM at a minimum.
>>>   I have found a LAMP VPS will crash if allocated less than 2GB of RAM,
>>> and will run will on 1 vCPU.
>>>
>>> The good news is I really only need one VPS to be active at any given
>>> time.
>>>
>>> If I wanted to build a box that could run more than one VPS at a time,
>>> lets say 4, and I wanted to allocate 2 vCPUs and 4GB of RAM I would need
>>> 4 threads x 2 cores to run the 4 VPS configured with 2 vCPUs each.
>>>
>>> What about RAM.  Looks like I would need a minimum of 16GB of ram.
>>>
>>> How much resources does the Hypervisor need, in this case Proxmox?
>>>
>>> Thanks!!
>>> Keith
>>> ---------------------------------------------------
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>>
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