How to choose Xen VPS or OpenVZ, which is less than rashodam resources?

Tell me please, where less resources are consumed in Xen or OpenVZ, if to take for a basis the standard CentOS? For example, memory? Am I to assume that in OpenVZ memory will rashodyatsya less, as OpenVZ is based on Linux kernel OS.
June 14th 19 at 20:42
4 answers
June 14th 19 at 20:44
Solution
OpenVZ is containerization in fact.
There overheads less.

But - where are you now razdobudete actual version of OpenVZ?

Unless on Virtuozzo. But it is commercial - paid.

From memory they all have a slight difference.

The difference is more between them - only on the CPU, not memory. From memory - there is a small difference

Today Xen and OpenVZ is not relevant.
KVM de - facto standard.
Unless on Virtuozzo. But it is commercial - paid.

Who you pay for Virtuozzo requests? Place and use for free. - Jaqueline.Parisian commented on June 14th 19 at 20:47
the trial offer or what to use?
or antediluvian version? - Mohammad.Cole22 commented on June 14th 19 at 20:50
Free called 7 OpenVZ, Virtuozzo on 7 without any extra buns.
https://openvz.org/Comparison - Jaqueline.Parisian commented on June 14th 19 at 20:53
I have already answered it immediately in the first message.

again
in short "a OpenVZ even alive"? - Mohammad.Cole22 commented on June 14th 19 at 20:56
Alive, OpenVZ 7 - Jaqueline.Parisian commented on June 14th 19 at 20:59
KVM de - facto standard.

I'm sorry, but KVM does not replace the containerization. He can compete with Xen, but not with containers. Containerization now there are namespaces and, in particular, LXC. - Justice.Nienow commented on June 14th 19 at 21:02
and where I have written that it is the de facto standard for everything, including containerization?
the topic of virtual machines on CentOS once it is generally not necessary to mention separately.
I even mention that KVM is the de facto standard, but it is not standard for lathes? - Mohammad.Cole22 commented on June 14th 19 at 21:05
,
Did not write about modern containers in detail - as they do not know on the basis of LXC ways to cock a full OS.
Know about Docker, but it's for applications.
And what do you offer under LXC cock full OS? - Mohammad.Cole22 commented on June 14th 19 at 21:08
, https://pve.proxmox.com/wiki/Linux_Container - Justice.Nienow commented on June 14th 19 at 21:11
June 14th 19 at 20:46
Solution
Modern analogy:
Xen -> KVM
OpenVZ -> LXC

Am I to assume that in OpenVZ memory will rashodyatsya less, as OpenVZ is based on Linux kernel OS.

In General, you are right to think that when containerization, in contrast to full virtualization uses less resources because the same resources can be used in multiple containers.
OpenVZ, what is not modern?
- Jaqueline.Parisian commented on June 14th 19 at 20:49
, Kernel version, for example? - Mohammad.Cole22 commented on June 14th 19 at 20:52
, 3.10 - Jaqueline.Parisian commented on June 14th 19 at 20:55
,
$ uname-r 
4.13.3-gentoo-skobkin


Indeed, the difference is minimal. - Mohammad.Cole22 commented on June 14th 19 at 20:58
And th? - Jaqueline.Parisian commented on June 14th 19 at 21:01
,
$ uname-a
G50n Linux 3.10.0-514.26.2.el7.x86_64 #1 SMP Tue Jul 4 15:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
$ cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core)

Want to say that RHEL/Cent7 - out-of-date distro?
No, I understand what's on your favorite localhost directly with kernel.org to collect from sorrow and enjoy the freshness, but on the servers, and especially hypervisors it is here generally any side is not an argument. - Justice.Nienow commented on June 14th 19 at 21:04
And I lost sight of that the author has a challenge on CentOS.
but on servers, and especially hypervisors it is here generally any side is not an argument.

The same PVE works fine on the fourth major version. But of course RHEL and PVE a bit different segments. - Mohammad.Cole22 commented on June 14th 19 at 21:07
June 14th 19 at 20:48
The technology selected for a task. For web for example OVZ is quite amiss and resources easier to manage.
June 14th 19 at 20:50
less Yes if you are host, if you just buy upski without much of a difference
Not really. Server density customers on the physical server will be higher, and therefore, most likely, the productivity is lower. - Jaqueline.Parisian commented on June 14th 19 at 20:53
density of customers is not related to system virtualization, I have the same density and OpenVZ on KVM and lxc - Mohammad.Cole22 commented on June 14th 19 at 20:56
You have - maybe and Yes. But OpenVZ is easier to make overall than regularly and use.
Plus you are tied to OpenVZ and Linux on a common core (this is to the original answer, not the comment). For example, you may need to ask the provider to include a particular module. In KVM you are your own boss. Want to put Window, you want - pack up your Linux kernel. - Jaqueline.Parisian commented on June 14th 19 at 20:59
, teleology jumped versality is now easy anywhere - Mohammad.Cole22 commented on June 14th 19 at 21:02
, Versalite everywhere. And, you can g*unanim iron to use. - Jaqueline.Parisian commented on June 14th 19 at 21:05

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