Re: Server CPU

2023-07-22 Thread Keith Smith via PLUG-discuss
 one LAMP VM configured.

This is what I come away with from this thread:

1) a vCPU is akin to a process.

2) One can configure lots of VMs that will share the CPUs.

3) Do not overload the server by adding too many VMs that all want

resources. I assume top can be used to evaluate the amount of load
on

the server.

3) When I configure a VM the amount of RAM is static (not shared).
If I

have 16GB of RAM then I realistically can only have around 12 - 14GB
of

RAM in use at any given time.  That would be running VMs.  I can
have

tons of VMs that are not running and not using resources/RAM and
their

RAM is no counted.  Its the active VM's that count.  RAM is not
shared.

4) The amount of file space allotted to a VM is also static and is
taken

up even when the VM is off.  For example if I have 10 VMs that are

assigned 20GB of disk space each, then that would total 200GB that
are

allocated and are always assigned and not shared with the other VMs.

---

OK, another question.  If commercial rack mount servers are so noisy
and

use a lot of electricity... then why not use consumer grade
computers?

Around 2005/2006 I was working as a level 1 at iPower.  A manager
showed

us some pictures of the server room in downtown L.A. and they had a
ton

of HP mini towers on storage racks that were being used as hardware

servers for hosting.  I think they called them dedicated servers.

---


On Thu, Jul 20, 2023 at 3:09 PM George Toft via PLUG-discuss



 wrote:







Be very careful with ESX.  I know someone who bought a random

server


and ESX7 was not supported.  It used to run on anything, now, not

so


much.  Check the support matrix before you buy.







Regards,







George Toft







On 7/20/2023 1:12 PM, greg zegan via PLUG-discuss wrote:







Hello,



I appreciate this topic.  I have been wondering for a while now



if there is an affordable home server out there for EXSi and

such.


Is there any way for someone to come up with a few choices for



people like me?  Is there a low end, mid range, and high end

home


server for someone to list with parts or suggested parts?







thanks,



Greg







On Thursday, July 20, 2023 at 01:01:13 PM MST, Keith Smith via



PLUG-discuss  wrote:







Thanks!!







On 2023-07-20 11:36, Ryan Petris via PLUG-discuss wrote:



I personally wouldn't even go for a used server. They're



generally



loud, and even when they aren't they use much more electricity



than



what you would get from a consumer platform. There's really no



benefit



unless you have room in your house to make a real server room



with



racks and the electrical capacity to go along with it.







On Thu, Jul 20, 2023, at 10:59 AM, Stephen Partington wrote:







the downside for these processors is their mainboards are

still


very



pricy to buy. much more than the CPU itself. you are almost



better



off looking for and buying a refurbished server which you can



get



for almost ludicrously inexpensive prices.







On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss



 wrote:







The CPU's cheap because it's old and no one wants them anymore



--



it's of the same generation as 6000 series intel processors



(i.e.



skylake). It also uses a server socket, so the only



motherboards



you're going to be able to find are server motherboards. Those



are



going to be expensive and/or have other quirks, such as



requiring a



vendor specific heatsink, or a vendor-specific power supply,

or


take



5 minutes to start up, etc.







You'd be better off spending money on a last-gen cpu and



motherboard, for instance here's a combination that is



relatively



cheap:







$174 for an i5-12400, which according to cpubenchmark.net [1]



[1] is



nearly 30% faster than the Xeon you linked (score of 19501 vs



15146,



much faster single-core score as well):



























https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/







$139 for a compatible motherboard:



























https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/







I also wouldn't pay so much attention to the number of



"threads" you



think you'll need; you can run many VMs with a total number of



virtual processors that is much more than what you actually



have,



and as long as you're not trying to go whole hog on every



machine at



the same time you'll be fine, and even if you do, you'll still



be



better off with a faster processor with a few fewer threads



than an



older slower cpu with more.







On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via

PLUG-discuss


wrote:







Hi,







I was surfing the Inter Web when I happened upon a Xeon server



CPU.



It







is marked at $32.49 at Newegg.  It has 12 cores and 24 threads



and



has a







good benchmark score.



























https://www.cpubenchmark.net/cpu.php?cpu=In

Re: Server CPU

2023-07-21 Thread Ryan Petris via PLUG-discuss
of VMs that are not running and not using resources/RAM and their 
> RAM is no counted.  Its the active VM's that count.  RAM is not shared.
> 4) The amount of file space allotted to a VM is also static and is taken 
> up even when the VM is off.  For example if I have 10 VMs that are 
> assigned 20GB of disk space each, then that would total 200GB that are 
> allocated and are always assigned and not shared with the other VMs.
> 
> ---
> 
> OK, another question.  If commercial rack mount servers are so noisy and 
> use a lot of electricity... then why not use consumer grade computers?
> 
> Around 2005/2006 I was working as a level 1 at iPower.  A manager showed 
> us some pictures of the server room in downtown L.A. and they had a ton 
> of HP mini towers on storage racks that were being used as hardware 
> servers for hosting.  I think they called them dedicated servers.
> 
> ---
> 
> > On Thu, Jul 20, 2023 at 3:09 PM George Toft via PLUG-discuss
> >  wrote:
> > 
> >> Be very careful with ESX.  I know someone who bought a random server
> >> and ESX7 was not supported.  It used to run on anything, now, not so
> >> much.  Check the support matrix before you buy.
> >> 
> >> Regards,
> >> 
> >> George Toft
> >> 
> >> On 7/20/2023 1:12 PM, greg zegan via PLUG-discuss wrote:
> >> 
> >>> Hello,
> >>> I appreciate this topic.  I have been wondering for a while now
> >>> if there is an affordable home server out there for EXSi and such.
> >>> Is there any way for someone to come up with a few choices for
> >>> people like me?  Is there a low end, mid range, and high end home
> >>> server for someone to list with parts or suggested parts?
> >>> 
> >>> thanks,
> >>> Greg
> >>> 
> >>> On Thursday, July 20, 2023 at 01:01:13 PM MST, Keith Smith via
> >>> PLUG-discuss  wrote:
> >>> 
> >>> Thanks!!
> >>> 
> >>> On 2023-07-20 11:36, Ryan Petris via PLUG-discuss wrote:
> >>>> I personally wouldn't even go for a used server. They're
> >>> generally
> >>>> loud, and even when they aren't they use much more electricity
> >>> than
> >>>> what you would get from a consumer platform. There's really no
> >>> benefit
> >>>> unless you have room in your house to make a real server room
> >>> with
> >>>> racks and the electrical capacity to go along with it.
> >>>> 
> >>>> On Thu, Jul 20, 2023, at 10:59 AM, Stephen Partington wrote:
> >>>> 
> >>>>> the downside for these processors is their mainboards are still
> >>> very
> >>>>> pricy to buy. much more than the CPU itself. you are almost
> >>> better
> >>>>> off looking for and buying a refurbished server which you can
> >>> get
> >>>>> for almost ludicrously inexpensive prices.
> >>>>> 
> >>>>> On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss
> >>>>>  wrote:
> >>>>> 
> >>>>> The CPU's cheap because it's old and no one wants them anymore
> >>> --
> >>>>> it's of the same generation as 6000 series intel processors
> >>> (i.e.
> >>>>> skylake). It also uses a server socket, so the only
> >>> motherboards
> >>>>> you're going to be able to find are server motherboards. Those
> >>> are
> >>>>> going to be expensive and/or have other quirks, such as
> >>> requiring a
> >>>>> vendor specific heatsink, or a vendor-specific power supply, or
> >>> take
> >>>>> 5 minutes to start up, etc.
> >>>>> 
> >>>>> You'd be better off spending money on a last-gen cpu and
> >>>>> motherboard, for instance here's a combination that is
> >>> relatively
> >>>>> cheap:
> >>>>> 
> >>>>> $174 for an i5-12400, which according to cpubenchmark.net [1]
> >>> [1] is
> >>>>> nearly 30% faster than the Xeon you linked (score of 19501 vs
> >>> 15146,
> >>>>> much faster single-core score as well):
> >>>>> 
> >>>>> 
> >>>> 
> >>> 
> >> 
> > https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/
> >>>>> 
&g

Re: Server CPU

2023-07-21 Thread Keith Smith via PLUG-discuss
 as well):









https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/


$139 for a compatible motherboard:









https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/


I also wouldn't pay so much attention to the number of

"threads" you

think you'll need; you can run many VMs with a total number of
virtual processors that is much more than what you actually

have,

and as long as you're not trying to go whole hog on every

machine at

the same time you'll be fine, and even if you do, you'll still

be

better off with a faster processor with a few fewer threads

than an

older slower cpu with more.

On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss
wrote:

Hi,

I was surfing the Inter Web when I happened upon a Xeon server

CPU.

It

is marked at $32.49 at Newegg.  It has 12 cores and 24 threads

and

has a

good benchmark score.









https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179


https://www.newegg.com/p/274-000A-007K2?Description=Xeon

In the future at some point I would like to build something

with 20

plus

or minus cores and 40 threads more or less for Proxmox.  This

would

be

over kills because I only need 1 or 2 VMs active at one time...
maybe 3

in an extreme situation.

This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would
really

be more resources than I would ever need.  Off the top of my

head

this

means I might be able to build a decent Proxmox server for $500

-

$600.

I do not need fancy video except for one VM that might be

running

Win 10

or 11...  I assume a server grade CPU would handle Win 10 and

11?


Am I on the right track?

Thank You For Your Feedback!!

Keith

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--

A mouse trap, placed on top of your alarm clock, will prevent

you from

rolling over and going back to sleep after you hit the snooze

button.


Stephen



Links:
--
[1] http://cpubenchmark.net



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--

Todd Cole
Ubuntu Arizona Team
2928 W El Caminito
Phoenix AZ  85051-3957
to...@azloco.com
602-677-9402


Links:
--
[1] http://cpubenchmark.net
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Re: Server CPU

2023-07-20 Thread Todd Cole via PLUG-discuss
I use a lot of proxmox servers and very happy with them most are for small
office use running a router, win server and  samba file server and a win 10
for remote users to vpn into
most of the hardware is used dell 4-6th gen I-7 (cheap 4 cores 8 virtual)
with zfs raid 1 2 SSD's for redundancy and a spinner HDD for back up 32-64
gb ram and meet my needs
with ease. both at home and work.
I have used rack servers but they are hard to fit on a shelf, HOT and use a
lot of power and sound like a jet taking off. (I have a few to donate free)
my point is do not over think or spend money to build a home lab or
hardware that you will need to replace due to your use case.
I still have one on a duel core 8 gb ram 2 250GB spinning disks that I use
as a router and zoneminder camera DVR in a un air conditioned vacant office
it just chugs along in 118 heat
I have a twin to it that is all set up ready to run that I would be willing
donate also. Todd


On Thu, Jul 20, 2023 at 3:09 PM George Toft via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> Be very careful with ESX.  I know someone who bought a random server and
> ESX7 was not supported.  It used to run on anything, now, not so much.
> Check the support matrix before you buy.
>
> Regards,
>
> George Toft
>
> On 7/20/2023 1:12 PM, greg zegan via PLUG-discuss wrote:
>
> Hello,
>   I appreciate this topic.  I have been wondering for a while now if there
> is an affordable home server out there for EXSi and such.  Is there any way
> for someone to come up with a few choices for people like me?  Is there a
> low end, mid range, and high end home server for someone to list with parts
> or suggested parts?
>
> thanks,
> Greg
>
> On Thursday, July 20, 2023 at 01:01:13 PM MST, Keith Smith via
> PLUG-discuss 
>  wrote:
>
>
> Thanks!!
>
> On 2023-07-20 11:36, Ryan Petris via PLUG-discuss wrote:
> > I personally wouldn't even go for a used server. They're generally
> > loud, and even when they aren't they use much more electricity than
> > what you would get from a consumer platform. There's really no benefit
> > unless you have room in your house to make a real server room with
> > racks and the electrical capacity to go along with it.
> >
> > On Thu, Jul 20, 2023, at 10:59 AM, Stephen Partington wrote:
> >
> >> the downside for these processors is their mainboards are still very
> >> pricy to buy. much more than the CPU itself. you are almost better
> >> off looking for and buying a refurbished server which you can get
> >> for almost ludicrously inexpensive prices.
> >>
> >> On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss
> >>  wrote:
> >>
> >> The CPU's cheap because it's old and no one wants them anymore --
> >> it's of the same generation as 6000 series intel processors (i.e.
> >> skylake). It also uses a server socket, so the only motherboards
> >> you're going to be able to find are server motherboards. Those are
> >> going to be expensive and/or have other quirks, such as requiring a
> >> vendor specific heatsink, or a vendor-specific power supply, or take
> >> 5 minutes to start up, etc.
> >>
> >> You'd be better off spending money on a last-gen cpu and
> >> motherboard, for instance here's a combination that is relatively
> >> cheap:
> >>
> >> $174 for an i5-12400, which according to cpubenchmark.net [1] is
> >> nearly 30% faster than the Xeon you linked (score of 19501 vs 15146,
> >> much faster single-core score as well):
> >>
> >>
> >
> https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/
> >>
> >> $139 for a compatible motherboard:
> >>
> >>
> > https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/
> >>
> >> I also wouldn't pay so much attention to the number of "threads" you
> >> think you'll need; you can run many VMs with a total number of
> >> virtual processors that is much more than what you actually have,
> >> and as long as you're not trying to go whole hog on every machine at
> >> the same time you'll be fine, and even if you do, you'll still be
> >> better off with a faster processor with a few fewer threads than an
> >> older slower cpu with more.
> >>
> >> On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss
> >> wrote:
> >>
> >> Hi,
> >>
> >> I was surfing the Inter Web when I happened upon a Xeon server CPU.
> >> It
> >>
> >> is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and
&g

Re: Server CPU

2023-07-20 Thread George Toft via PLUG-discuss
Be very careful with ESX.  I know someone who bought a random server and 
ESX7 was not supported.  It used to run on anything, now, not so much.  
Check the support matrix before you buy.


Regards,

George Toft

On 7/20/2023 1:12 PM, greg zegan via PLUG-discuss wrote:

Hello,
  I appreciate this topic.  I have been wondering for a while now if 
there is an affordable home server out there for EXSi and such.  Is 
there any way for someone to come up with a few choices for people 
like me?  Is there a low end, mid range, and high end home server for 
someone to list with parts or suggested parts?


thanks,
Greg

On Thursday, July 20, 2023 at 01:01:13 PM MST, Keith Smith via 
PLUG-discuss  wrote:



Thanks!!

On 2023-07-20 11:36, Ryan Petris via PLUG-discuss wrote:
> I personally wouldn't even go for a used server. They're generally
> loud, and even when they aren't they use much more electricity than
> what you would get from a consumer platform. There's really no benefit
> unless you have room in your house to make a real server room with
> racks and the electrical capacity to go along with it.
>
> On Thu, Jul 20, 2023, at 10:59 AM, Stephen Partington wrote:
>
>> the downside for these processors is their mainboards are still very
>> pricy to buy. much more than the CPU itself. you are almost better
>> off looking for and buying a refurbished server which you can get
>> for almost ludicrously inexpensive prices.
>>
>> On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss
>>  wrote:
>>
>> The CPU's cheap because it's old and no one wants them anymore --
>> it's of the same generation as 6000 series intel processors (i.e.
>> skylake). It also uses a server socket, so the only motherboards
>> you're going to be able to find are server motherboards. Those are
>> going to be expensive and/or have other quirks, such as requiring a
>> vendor specific heatsink, or a vendor-specific power supply, or take
>> 5 minutes to start up, etc.
>>
>> You'd be better off spending money on a last-gen cpu and
>> motherboard, for instance here's a combination that is relatively
>> cheap:
>>
>> $174 for an i5-12400, which according to cpubenchmark.net [1] is
>> nearly 30% faster than the Xeon you linked (score of 19501 vs 15146,
>> much faster single-core score as well):
>>
>>
> 
https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/

>>
>> $139 for a compatible motherboard:
>>
>>
> https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/
>>
>> I also wouldn't pay so much attention to the number of "threads" you
>> think you'll need; you can run many VMs with a total number of
>> virtual processors that is much more than what you actually have,
>> and as long as you're not trying to go whole hog on every machine at
>> the same time you'll be fine, and even if you do, you'll still be
>> better off with a faster processor with a few fewer threads than an
>> older slower cpu with more.
>>
>> On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss
>> wrote:
>>
>> Hi,
>>
>> I was surfing the Inter Web when I happened upon a Xeon server CPU.
>> It
>>
>> is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and
>> has a
>>
>> good benchmark score.
>>
>>
> 
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179 
<https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179>

>>
>> https://www.newegg.com/p/274-000A-007K2?Description=Xeon
>>
>> In the future at some point I would like to build something with 20
>> plus
>>
>> or minus cores and 40 threads more or less for Proxmox.  This would
>> be
>>
>> over kills because I only need 1 or 2 VMs active at one time...
>> maybe 3
>>
>> in an extreme situation.
>>
>> This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would
>> really
>>
>> be more resources than I would ever need.  Off the top of my head
>> this
>>
>> means I might be able to build a decent Proxmox server for $500 -
>> $600.
>>
>> I do not need fancy video except for one VM that might be running
>> Win 10
>>
>> or 11...  I assume a server grade CPU would handle Win 10 and 11?
>>
>> Am I on the right track?
>>
>> Thank You For Your Feedback!!
>>
>> Keith
>>
>> ---
>>
>> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
>>
>>

Re: Server CPU

2023-07-20 Thread Stephen Partington via PLUG-discuss
VCPU is the other half of hyperthreading/smt

Rhe route I have gone is a used cpu board combination there are tons of
them on ebay and they are a single epyc but combined less than 300. And the
core density is amazing.

The again.
NEW  AMD Epyc 7551 32-Core 64-Thread 2.0GHz CPU Retail Box NO VENDOR Lock
for 99 bux. That's worth it.

On Thu, Jul 20, 2023, 5:17 PM Ryan Petris via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> That's right, a vCPU is a shared resource.
>
> Lets say that you had a machine with 4 cores on it. To the operating
> system, other than some nuances with the cache, PCI connections, etc., each
> core is effectively its own CPU, and therefore we'll say the machine has a
> total of 4 CPUs. Now, just becuase it has 4 CPUs doesn't mean that you can
> only run 4 programs at a time; you can run hundreds or thousands of
> programs at the time time, and the operating system will schedule those to
> run on the CPUs. Each program will get some CPU time, more so if other
> processes aren't doing much.
>
> Now, think of each vCPU as a process running on the host machine. The host
> machine will time share those vCPUs across the actual CPUs just like any
> other process running on the machine. But, within the virtual environment,
> it is seen as a real CPU to the guest operating system, and it will
> schedule programs to run on that CPU accordingly.
>
> So, you effectively have two layers of scheduling happening.
>
> There's not necessarily a limit on the number of vCPUs, just as there's
> not necessarily a limit on the number of processes that you can run. Yes
> there are technical limits on the number of processes that can be run, but
> that's an operating system limitation.
>
> Now, you can assign a vCPU to have exclusive use of a CPU on the host
> system, however unless you have some critical application where that's an
> absolute must, it's really not necessary; you're just slowing down every
> other process on that machine as they're no longer able to use that CPU
> when nothing else is using it.
>
> Now, if your machine is super busy and you have virtual machines competing
> for time, then you have what's called "steal time" or "CPU Steal", which is
> the amount of time a vCPU waits for control of a real CPU; you can read
> about that here:
> https://blog.appsignal.com/2021/09/15/cpu-steal-time-a-crucial-metric-for-cloud-servers-and-vms.html.
> But if that becomes a problem, you're overloading your system and it
> doesn't really matter how many threads your host system has.
>
> On Thu, Jul 20, 2023, at 12:59 PM, techli...@phpcoderusa.com wrote:
>
> On 2023-07-20 10:55, Ryan Petris wrote:
> > The CPU's cheap because it's old and no one wants them anymore -- it's
> > of the same generation as 6000 series intel processors (i.e. skylake).
> > It also uses a server socket, so the only motherboards you're going to
> > be able to find are server motherboards. Those are going to be
> > expensive and/or have other quirks, such as requiring a vendor
> > specific heatsink, or a vendor-specific power supply, or take 5
> > minutes to start up, etc.
> >
> > You'd be better off spending money on a last-gen cpu and motherboard,
> > for instance here's a combination that is relatively cheap:
> >
> > $174 for an i5-12400, which according to cpubenchmark.net is nearly
> > 30% faster than the Xeon you linked (score of 19501 vs 15146, much
> > faster single-core score as well):
> >
> https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/
> >
> > $139 for a compatible motherboard:
> > https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/
> >
> > I also wouldn't pay so much attention to the number of "threads" you
> > think you'll need; you can run many VMs with a total number of virtual
> > processors that is much more than what you actually have, and as long
> > as you're not trying to go whole hog on every machine at the same time
> > you'll be fine, and even if you do, you'll still be better off with a
> > faster processor with a few fewer threads than an older slower cpu
> > with more.
>
> ---
>
> Several months ago I did some research on what a vCPU is.  I could not
> find an exact answer.  What I came away thinking was a vCPU is equal to
> a thread.  From what you are saying it sounds like a vCPU is a shared
> resource, so there may be more vCPUs than actual threads?  Is there a
> way I can determine the number of vCPUs a CPU will provide?
>
>
> ---
>
> >
> > On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss wrote:
> >
> >> Hi,
> >>
> >> I was surfi

Re: Server CPU

2023-07-20 Thread Ryan Petris via PLUG-discuss
That's right, a vCPU is a shared resource.

Lets say that you had a machine with 4 cores on it. To the operating system, 
other than some nuances with the cache, PCI connections, etc., each core is 
effectively its own CPU, and therefore we'll say the machine has a total of 4 
CPUs. Now, just becuase it has 4 CPUs doesn't mean that you can only run 4 
programs at a time; you can run hundreds or thousands of programs at the time 
time, and the operating system will schedule those to run on the CPUs. Each 
program will get some CPU time, more so if other processes aren't doing much.

Now, think of each vCPU as a process running on the host machine. The host 
machine will time share those vCPUs across the actual CPUs just like any other 
process running on the machine. But, within the virtual environment, it is seen 
as a real CPU to the guest operating system, and it will schedule programs to 
run on that CPU accordingly.

So, you effectively have two layers of scheduling happening.

There's not necessarily a limit on the number of vCPUs, just as there's not 
necessarily a limit on the number of processes that you can run. Yes there are 
technical limits on the number of processes that can be run, but that's an 
operating system limitation.

Now, you can assign a vCPU to have exclusive use of a CPU on the host system, 
however unless you have some critical application where that's an absolute 
must, it's really not necessary; you're just slowing down every other process 
on that machine as they're no longer able to use that CPU when nothing else is 
using it.

Now, if your machine is super busy and you have virtual machines competing for 
time, then you have what's called "steal time" or "CPU Steal", which is the 
amount of time a vCPU waits for control of a real CPU; you can read about that 
here: 
https://blog.appsignal.com/2021/09/15/cpu-steal-time-a-crucial-metric-for-cloud-servers-and-vms.html.
 But if that becomes a problem, you're overloading your system and it doesn't 
really matter how many threads your host system has.

On Thu, Jul 20, 2023, at 12:59 PM, techli...@phpcoderusa.com wrote:
> On 2023-07-20 10:55, Ryan Petris wrote:
> > The CPU's cheap because it's old and no one wants them anymore -- it's
> > of the same generation as 6000 series intel processors (i.e. skylake).
> > It also uses a server socket, so the only motherboards you're going to
> > be able to find are server motherboards. Those are going to be
> > expensive and/or have other quirks, such as requiring a vendor
> > specific heatsink, or a vendor-specific power supply, or take 5
> > minutes to start up, etc.
> > 
> > You'd be better off spending money on a last-gen cpu and motherboard,
> > for instance here's a combination that is relatively cheap:
> > 
> > $174 for an i5-12400, which according to cpubenchmark.net is nearly
> > 30% faster than the Xeon you linked (score of 19501 vs 15146, much
> > faster single-core score as well):
> > https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/
> > 
> > $139 for a compatible motherboard:
> > https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/
> > 
> > I also wouldn't pay so much attention to the number of "threads" you
> > think you'll need; you can run many VMs with a total number of virtual
> > processors that is much more than what you actually have, and as long
> > as you're not trying to go whole hog on every machine at the same time
> > you'll be fine, and even if you do, you'll still be better off with a
> > faster processor with a few fewer threads than an older slower cpu
> > with more.
> 
> ---
> 
> Several months ago I did some research on what a vCPU is.  I could not 
> find an exact answer.  What I came away thinking was a vCPU is equal to 
> a thread.  From what you are saying it sounds like a vCPU is a shared 
> resource, so there may be more vCPUs than actual threads?  Is there a 
> way I can determine the number of vCPUs a CPU will provide?
> 
> 
> ---
> 
> > 
> > On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss wrote:
> > 
> >> Hi,
> >> 
> >> I was surfing the Inter Web when I happened upon a Xeon server CPU.
> >> It
> >> 
> >> is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and
> >> has a
> >> 
> >> good benchmark score.
> >> 
> >> 
> > https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179
> >> 
> >> https://www.newegg.com/p/274-000A-007K2?Description=Xeon
> >> 
> >> In the future at some point I would like to build something with 20
> >> plus
> >> 
> >> or m

Re: Server CPU

2023-07-20 Thread greg zegan via PLUG-discuss
 Hello,  I appreciate this topic.  I have been wondering for a while now if 
there is an affordable home server out there for EXSi and such.  Is there any 
way for someone to come up with a few choices for people like me?  Is there a 
low end, mid range, and high end home server for someone to list with parts or 
suggested parts?
thanks,Greg
On Thursday, July 20, 2023 at 01:01:13 PM MST, Keith Smith via PLUG-discuss 
 wrote:  
 
 Thanks!!

On 2023-07-20 11:36, Ryan Petris via PLUG-discuss wrote:
> I personally wouldn't even go for a used server. They're generally
> loud, and even when they aren't they use much more electricity than
> what you would get from a consumer platform. There's really no benefit
> unless you have room in your house to make a real server room with
> racks and the electrical capacity to go along with it.
> 
> On Thu, Jul 20, 2023, at 10:59 AM, Stephen Partington wrote:
> 
>> the downside for these processors is their mainboards are still very
>> pricy to buy. much more than the CPU itself. you are almost better
>> off looking for and buying a refurbished server which you can get
>> for almost ludicrously inexpensive prices.
>> 
>> On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss
>>  wrote:
>> 
>> The CPU's cheap because it's old and no one wants them anymore --
>> it's of the same generation as 6000 series intel processors (i.e.
>> skylake). It also uses a server socket, so the only motherboards
>> you're going to be able to find are server motherboards. Those are
>> going to be expensive and/or have other quirks, such as requiring a
>> vendor specific heatsink, or a vendor-specific power supply, or take
>> 5 minutes to start up, etc.
>> 
>> You'd be better off spending money on a last-gen cpu and
>> motherboard, for instance here's a combination that is relatively
>> cheap:
>> 
>> $174 for an i5-12400, which according to cpubenchmark.net [1] is
>> nearly 30% faster than the Xeon you linked (score of 19501 vs 15146,
>> much faster single-core score as well):
>> 
>> 
> https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/
>> 
>> $139 for a compatible motherboard:
>> 
>> 
> https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/
>> 
>> I also wouldn't pay so much attention to the number of "threads" you
>> think you'll need; you can run many VMs with a total number of
>> virtual processors that is much more than what you actually have,
>> and as long as you're not trying to go whole hog on every machine at
>> the same time you'll be fine, and even if you do, you'll still be
>> better off with a faster processor with a few fewer threads than an
>> older slower cpu with more.
>> 
>> On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss
>> wrote:
>> 
>> Hi,
>> 
>> I was surfing the Inter Web when I happened upon a Xeon server CPU.
>> It
>> 
>> is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and
>> has a
>> 
>> good benchmark score.
>> 
>> 
> https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179
>> 
>> https://www.newegg.com/p/274-000A-007K2?Description=Xeon
>> 
>> In the future at some point I would like to build something with 20
>> plus
>> 
>> or minus cores and 40 threads more or less for Proxmox.  This would
>> be
>> 
>> over kills because I only need 1 or 2 VMs active at one time...
>> maybe 3
>> 
>> in an extreme situation.
>> 
>> This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would
>> really
>> 
>> be more resources than I would ever need.  Off the top of my head
>> this
>> 
>> means I might be able to build a decent Proxmox server for $500 -
>> $600.
>> 
>> I do not need fancy video except for one VM that might be running
>> Win 10
>> 
>> or 11...  I assume a server grade CPU would handle Win 10 and 11?
>> 
>> Am I on the right track?
>> 
>> Thank You For Your Feedback!!
>> 
>> Keith
>> 
>> ---
>> 
>> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
>> 
>> To subscribe, unsubscribe, or to change your mail settings:
>> 
>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>> 
>> ---
>> 
>> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
>> 
>> To subscribe, unsubscribe, or to change your mail settings:
>> 
&g

Re: Server CPU

2023-07-20 Thread Keith Smith via PLUG-discuss

Thanks!!

On 2023-07-20 11:36, Ryan Petris via PLUG-discuss wrote:

I personally wouldn't even go for a used server. They're generally
loud, and even when they aren't they use much more electricity than
what you would get from a consumer platform. There's really no benefit
unless you have room in your house to make a real server room with
racks and the electrical capacity to go along with it.

On Thu, Jul 20, 2023, at 10:59 AM, Stephen Partington wrote:


the downside for these processors is their mainboards are still very
pricy to buy. much more than the CPU itself. you are almost better
off looking for and buying a refurbished server which you can get
for almost ludicrously inexpensive prices.

On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss
 wrote:

The CPU's cheap because it's old and no one wants them anymore --
it's of the same generation as 6000 series intel processors (i.e.
skylake). It also uses a server socket, so the only motherboards
you're going to be able to find are server motherboards. Those are
going to be expensive and/or have other quirks, such as requiring a
vendor specific heatsink, or a vendor-specific power supply, or take
5 minutes to start up, etc.

You'd be better off spending money on a last-gen cpu and
motherboard, for instance here's a combination that is relatively
cheap:

$174 for an i5-12400, which according to cpubenchmark.net [1] is
nearly 30% faster than the Xeon you linked (score of 19501 vs 15146,
much faster single-core score as well):



https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/


$139 for a compatible motherboard:



https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/


I also wouldn't pay so much attention to the number of "threads" you
think you'll need; you can run many VMs with a total number of
virtual processors that is much more than what you actually have,
and as long as you're not trying to go whole hog on every machine at
the same time you'll be fine, and even if you do, you'll still be
better off with a faster processor with a few fewer threads than an
older slower cpu with more.

On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss
wrote:

Hi,

I was surfing the Inter Web when I happened upon a Xeon server CPU.
It

is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and
has a

good benchmark score.



https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179


https://www.newegg.com/p/274-000A-007K2?Description=Xeon

In the future at some point I would like to build something with 20
plus

or minus cores and 40 threads more or less for Proxmox.  This would
be

over kills because I only need 1 or 2 VMs active at one time...
maybe 3

in an extreme situation.

This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would
really

be more resources than I would ever need.  Off the top of my head
this

means I might be able to build a decent Proxmox server for $500 -
$600.

I do not need fancy video except for one VM that might be running
Win 10

or 11...  I assume a server grade CPU would handle Win 10 and 11?

Am I on the right track?

Thank You For Your Feedback!!

Keith

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--

A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen



Links:
--
[1] http://cpubenchmark.net
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Re: Server CPU

2023-07-20 Thread Keith Smith via PLUG-discuss

Ok, Thanks!!

On 2023-07-20 10:59, Stephen Partington via PLUG-discuss wrote:

the downside for these processors is their mainboards are still very
pricy to buy. much more than the CPU itself. you are almost better off
looking for and buying a refurbished server which you can get for
almost ludicrously inexpensive prices.

On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss
 wrote:


The CPU's cheap because it's old and no one wants them anymore --
it's of the same generation as 6000 series intel processors (i.e.
skylake). It also uses a server socket, so the only motherboards
you're going to be able to find are server motherboards. Those are
going to be expensive and/or have other quirks, such as requiring a
vendor specific heatsink, or a vendor-specific power supply, or take
5 minutes to start up, etc.

You'd be better off spending money on a last-gen cpu and
motherboard, for instance here's a combination that is relatively
cheap:

$174 for an i5-12400, which according to cpubenchmark.net [1] is
nearly 30% faster than the Xeon you linked (score of 19501 vs 15146,
much faster single-core score as well):


https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/


$139 for a compatible motherboard:


https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/


I also wouldn't pay so much attention to the number of "threads" you
think you'll need; you can run many VMs with a total number of
virtual processors that is much more than what you actually have,
and as long as you're not trying to go whole hog on every machine at
the same time you'll be fine, and even if you do, you'll still be
better off with a faster processor with a few fewer threads than an
older slower cpu with more.

On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss
wrote:


Hi,

I was surfing the Inter Web when I happened upon a Xeon server
CPU.  It

is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and
has a

good benchmark score.





https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179


https://www.newegg.com/p/274-000A-007K2?Description=Xeon

In the future at some point I would like to build something with
20 plus

or minus cores and 40 threads more or less for Proxmox.  This
would be

over kills because I only need 1 or 2 VMs active at one time...
maybe 3

in an extreme situation.

This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would
really

be more resources than I would ever need.  Off the top of my head
this

means I might be able to build a decent Proxmox server for $500 -
$600.

I do not need fancy video except for one VM that might be running
Win 10

or 11...  I assume a server grade CPU would handle Win 10 and 11?

Am I on the right track?

Thank You For Your Feedback!!

Keith
is
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--
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rolling over and going back to sleep after you hit the snooze button.

Stephen



Links:
--
[1] http://cpubenchmark.net
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Re: Server CPU

2023-07-20 Thread Keith Smith via PLUG-discuss

On 2023-07-20 10:55, Ryan Petris wrote:

The CPU's cheap because it's old and no one wants them anymore -- it's
of the same generation as 6000 series intel processors (i.e. skylake).
It also uses a server socket, so the only motherboards you're going to
be able to find are server motherboards. Those are going to be
expensive and/or have other quirks, such as requiring a vendor
specific heatsink, or a vendor-specific power supply, or take 5
minutes to start up, etc.

You'd be better off spending money on a last-gen cpu and motherboard,
for instance here's a combination that is relatively cheap:

$174 for an i5-12400, which according to cpubenchmark.net is nearly
30% faster than the Xeon you linked (score of 19501 vs 15146, much
faster single-core score as well):
https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/

$139 for a compatible motherboard:
https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/

I also wouldn't pay so much attention to the number of "threads" you
think you'll need; you can run many VMs with a total number of virtual
processors that is much more than what you actually have, and as long
as you're not trying to go whole hog on every machine at the same time
you'll be fine, and even if you do, you'll still be better off with a
faster processor with a few fewer threads than an older slower cpu
with more.


---

Several months ago I did some research on what a vCPU is.  I could not 
find an exact answer.  What I came away thinking was a vCPU is equal to 
a thread.  From what you are saying it sounds like a vCPU is a shared 
resource, so there may be more vCPUs than actual threads?  Is there a 
way I can determine the number of vCPUs a CPU will provide?



---



On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss wrote:


Hi,

I was surfing the Inter Web when I happened upon a Xeon server CPU.
It

is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and
has a

good benchmark score.



https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179


https://www.newegg.com/p/274-000A-007K2?Description=Xeon

In the future at some point I would like to build something with 20
plus

or minus cores and 40 threads more or less for Proxmox.  This would
be

over kills because I only need 1 or 2 VMs active at one time...
maybe 3

in an extreme situation.

This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would
really

be more resources than I would ever need.  Off the top of my head
this

means I might be able to build a decent Proxmox server for $500 -
$600.

I do not need fancy video except for one VM that might be running
Win 10

or 11...  I assume a server grade CPU would handle Win 10 and 11?

Am I on the right track?

Thank You For Your Feedback!!

Keith

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Re: Server CPU

2023-07-20 Thread Ryan Rix via PLUG-discuss
wouldn't pay so much attention to the number of "threads" you think 
>>> you'll need; you can run many VMs with a total number of virtual processors 
>>> that is much more than what you actually have, and as long as you're not 
>>> trying to go whole hog on every machine at the same time you'll be fine, 
>>> and even if you do, you'll still be better off with a faster processor with 
>>> a few fewer threads than an older slower cpu with more.
>>> 
>>> On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss wrote:
>>>> Hi,
>>>> 
>>>> I was surfing the Inter Web when I happened upon a Xeon server CPU.  It 
>>>> is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and has a 
>>>> good benchmark score.  
>>>> https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179
>>>> 
>>>> https://www.newegg.com/p/274-000A-007K2?Description=Xeon
>>>> 
>>>> In the future at some point I would like to build something with 20 plus 
>>>> or minus cores and 40 threads more or less for Proxmox.  This would be 
>>>> over kills because I only need 1 or 2 VMs active at one time... maybe 3 
>>>> in an extreme situation.
>>>> 
>>>> This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would really 
>>>> be more resources than I would ever need.  Off the top of my head this 
>>>> means I might be able to build a decent Proxmox server for $500 - $600.
>>>> 
>>>> I do not need fancy video except for one VM that might be running Win 10 
>>>> or 11...  I assume a server grade CPU would handle Win 10 and 11?
>>>> 
>>>> Am I on the right track?
>>>> 
>>>> Thank You For Your Feedback!!
>>>> 
>>>> Keith
>>>> ---
>>>> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
>>>> To subscribe, unsubscribe, or to change your mail settings:
>>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>>>> 
>>> 
>>> ---
>>> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
>>> To subscribe, unsubscribe, or to change your mail settings:
>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>> 
>> 
>> --
>> A mouse trap, placed on top of your alarm clock, will prevent you from 
>> rolling over and going back to sleep after you hit the snooze button.
>> 
>> Stephen
> 
> ---
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Re: Server CPU

2023-07-20 Thread Ryan Petris via PLUG-discuss
I personally wouldn't even go for a used server. They're generally loud, and 
even when they aren't they use much more electricity than what you would get 
from a consumer platform. There's really no benefit unless you have room in 
your house to make a real server room with racks and the electrical capacity to 
go along with it.

On Thu, Jul 20, 2023, at 10:59 AM, Stephen Partington wrote:
> the downside for these processors is their mainboards are still very pricy to 
> buy. much more than the CPU itself. you are almost better off looking for and 
> buying a refurbished server which you can get for almost ludicrously 
> inexpensive prices.
> 
> On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss 
>  wrote:
>> __
>> The CPU's cheap because it's old and no one wants them anymore -- it's of 
>> the same generation as 6000 series intel processors (i.e. skylake). It also 
>> uses a server socket, so the only motherboards you're going to be able to 
>> find are server motherboards. Those are going to be expensive and/or have 
>> other quirks, such as requiring a vendor specific heatsink, or a 
>> vendor-specific power supply, or take 5 minutes to start up, etc.
>> 
>> You'd be better off spending money on a last-gen cpu and motherboard, for 
>> instance here's a combination that is relatively cheap:
>> 
>> $174 for an i5-12400, which according to cpubenchmark.net is nearly 30% 
>> faster than the Xeon you linked (score of 19501 vs 15146, much faster 
>> single-core score as well):
>> https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/
>> 
>> $139 for a compatible motherboard:
>> https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/
>> 
>> I also wouldn't pay so much attention to the number of "threads" you think 
>> you'll need; you can run many VMs with a total number of virtual processors 
>> that is much more than what you actually have, and as long as you're not 
>> trying to go whole hog on every machine at the same time you'll be fine, and 
>> even if you do, you'll still be better off with a faster processor with a 
>> few fewer threads than an older slower cpu with more.
>> 
>> On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss wrote:
>>> Hi,
>>> 
>>> I was surfing the Inter Web when I happened upon a Xeon server CPU.  It 
>>> is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and has a 
>>> good benchmark score.  
>>> https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179
>>> 
>>> https://www.newegg.com/p/274-000A-007K2?Description=Xeon
>>> 
>>> In the future at some point I would like to build something with 20 plus 
>>> or minus cores and 40 threads more or less for Proxmox.  This would be 
>>> over kills because I only need 1 or 2 VMs active at one time... maybe 3 
>>> in an extreme situation.
>>> 
>>> This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would really 
>>> be more resources than I would ever need.  Off the top of my head this 
>>> means I might be able to build a decent Proxmox server for $500 - $600.
>>> 
>>> I do not need fancy video except for one VM that might be running Win 10 
>>> or 11...  I assume a server grade CPU would handle Win 10 and 11?
>>> 
>>> Am I on the right track?
>>> 
>>> Thank You For Your Feedback!!
>>> 
>>> Keith
>>> ---
>>> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
>>> To subscribe, unsubscribe, or to change your mail settings:
>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>>> 
>> 
>> ---
>> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
>> To subscribe, unsubscribe, or to change your mail settings:
>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
> 
> 
> --
> A mouse trap, placed on top of your alarm clock, will prevent you from 
> rolling over and going back to sleep after you hit the snooze button.
> 
> Stephen
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Re: Server CPU

2023-07-20 Thread Stephen Partington via PLUG-discuss
the downside for these processors is their mainboards are still very pricy
to buy. much more than the CPU itself. you are almost better off looking
for and buying a refurbished server which you can get for almost
ludicrously inexpensive prices.

On Thu, Jul 20, 2023 at 1:56 PM Ryan Petris via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> The CPU's cheap because it's old and no one wants them anymore -- it's of
> the same generation as 6000 series intel processors (i.e. skylake). It also
> uses a server socket, so the only motherboards you're going to be able to
> find are server motherboards. Those are going to be expensive and/or have
> other quirks, such as requiring a vendor specific heatsink, or a
> vendor-specific power supply, or take 5 minutes to start up, etc.
>
> You'd be better off spending money on a last-gen cpu and motherboard, for
> instance here's a combination that is relatively cheap:
>
> $174 for an i5-12400, which according to cpubenchmark.net is nearly 30%
> faster than the Xeon you linked (score of 19501 vs 15146, much faster
> single-core score as well):
>
> https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/
>
> $139 for a compatible motherboard:
> https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/
>
> I also wouldn't pay so much attention to the number of "threads" you think
> you'll need; you can run many VMs with a total number of virtual processors
> that is much more than what you actually have, and as long as you're not
> trying to go whole hog on every machine at the same time you'll be fine,
> and even if you do, you'll still be better off with a faster processor with
> a few fewer threads than an older slower cpu with more.
>
> On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss wrote:
>
> Hi,
>
> I was surfing the Inter Web when I happened upon a Xeon server CPU.  It
> is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and has a
> good benchmark score.
>
> https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179
>
> https://www.newegg.com/p/274-000A-007K2?Description=Xeon
>
> In the future at some point I would like to build something with 20 plus
> or minus cores and 40 threads more or less for Proxmox.  This would be
> over kills because I only need 1 or 2 VMs active at one time... maybe 3
> in an extreme situation.
>
> This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would really
> be more resources than I would ever need.  Off the top of my head this
> means I might be able to build a decent Proxmox server for $500 - $600.
>
> I do not need fancy video except for one VM that might be running Win 10
> or 11...  I assume a server grade CPU would handle Win 10 and 11?
>
> Am I on the right track?
>
> Thank You For Your Feedback!!
>
> Keith
> ---
> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
> To subscribe, unsubscribe, or to change your mail settings:
> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>
>
> ---
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> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>


-- 
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen
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Re: Server CPU

2023-07-20 Thread Ryan Petris via PLUG-discuss
The CPU's cheap because it's old and no one wants them anymore -- it's of the 
same generation as 6000 series intel processors (i.e. skylake). It also uses a 
server socket, so the only motherboards you're going to be able to find are 
server motherboards. Those are going to be expensive and/or have other quirks, 
such as requiring a vendor specific heatsink, or a vendor-specific power 
supply, or take 5 minutes to start up, etc.

You'd be better off spending money on a last-gen cpu and motherboard, for 
instance here's a combination that is relatively cheap:

$174 for an i5-12400, which according to cpubenchmark.net is nearly 30% faster 
than the Xeon you linked (score of 19501 vs 15146, much faster single-core 
score as well):
https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/

$139 for a compatible motherboard:
https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/

I also wouldn't pay so much attention to the number of "threads" you think 
you'll need; you can run many VMs with a total number of virtual processors 
that is much more than what you actually have, and as long as you're not trying 
to go whole hog on every machine at the same time you'll be fine, and even if 
you do, you'll still be better off with a faster processor with a few fewer 
threads than an older slower cpu with more.

On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss wrote:
> Hi,
> 
> I was surfing the Inter Web when I happened upon a Xeon server CPU.  It 
> is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and has a 
> good benchmark score.  
> https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179
> 
> https://www.newegg.com/p/274-000A-007K2?Description=Xeon
> 
> In the future at some point I would like to build something with 20 plus 
> or minus cores and 40 threads more or less for Proxmox.  This would be 
> over kills because I only need 1 or 2 VMs active at one time... maybe 3 
> in an extreme situation.
> 
> This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would really 
> be more resources than I would ever need.  Off the top of my head this 
> means I might be able to build a decent Proxmox server for $500 - $600.
> 
> I do not need fancy video except for one VM that might be running Win 10 
> or 11...  I assume a server grade CPU would handle Win 10 and 11?
> 
> Am I on the right track?
> 
> Thank You For Your Feedback!!
> 
> Keith
> ---
> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org
> To subscribe, unsubscribe, or to change your mail settings:
> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
> 
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Server CPU

2023-07-20 Thread Keith Smith via PLUG-discuss

Hi,

I was surfing the Inter Web when I happened upon a Xeon server CPU.  It 
is marked at $32.49 at Newegg.  It has 12 cores and 24 threads and has a 
good benchmark score.  
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz=3179


https://www.newegg.com/p/274-000A-007K2?Description=Xeon

In the future at some point I would like to build something with 20 plus 
or minus cores and 40 threads more or less for Proxmox.  This would be 
over kills because I only need 1 or 2 VMs active at one time... maybe 3 
in an extreme situation.


This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would really 
be more resources than I would ever need.  Off the top of my head this 
means I might be able to build a decent Proxmox server for $500 - $600.


I do not need fancy video except for one VM that might be running Win 10 
or 11...  I assume a server grade CPU would handle Win 10 and 11?


Am I on the right track?

Thank You For Your Feedback!!

Keith
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