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Re: [Xen-users] HTPC + DUAL PC In one

Thanks for the suggestions Gordan!

So a zfs server properly configured can be an alternative to unRaid?

This is interesting. So i can partitioning the CPU in multiple virtual cores and Xen will manage the schedule?
I such way i can do something like this: 4 cores for me, 2 cores for my family, 1 core for HTPC, 1 core for Dom0; correct? But there's still that question, is better an 8core FX-8350 or 4-core i7 4790k? I did some research and find that FX-8350 is made of 4 modules with 2 cores each. Each module share the sameÂfloating point unit and here's the problem: a core has to wait for the floating point unit of its module if it is busy with the other core. Intel instead uses HyperThreading: the 4790k, bacause of this, has 4 cores with 8 threads. I really don't know what to do! What do you think?

2014-07-16 12:27 GMT+02:00 Gordan Bobic <gordan@xxxxxxxxxx>:
On 2014-07-16 11:12, Mattia Carrara wrote:
Hello again Guys. I looked up that HP Microserver, it is pretty cool
and cheap. Now I have a limited budged so i will remain on virtualized
HTPC. Maybe in the future it will be useful.Â

It's cheaper than a decent GPU. :)

Gordan what is a ZFS reciever?

The question was referring to ZFS' send/receive feature. With it
you can easily send and receive file system and volume snapshots
between different machines.

About CPUs, I find on the net some benchmarks:

It seems that i7 is more performant than AMDs... But the point is that
using Xen and multiple virtual machines, i'll need more parallel
calculus power, right? So 8 cores would be better? Is it possible that
those benchmarks aren't done using all the eight cores of AMDs? Austin
said that he can reach the calculus power of aÂdual processor Xeon
E3-1286 v3. That's really a goodÂresult. So maybe i should choose

How many cores are you going to give to your VMs? You can overbook
CPU cores with Xen, i.e. if you have 8 cores and 3 VMs, you can give
each VM 4 cores and Xen will figure out dynamically which core to
schedule the load on, even though it only has 8 physical cores to
schedule 12 virtual cores plus itself between.

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