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KVM behaviour
06-07-2018, 05:05 PM
Post: #1
KVM behaviour
We need to checkout some behaviour of KVM before we use KVM into production

Network
N1) On xen, if we run 'systemctl restart network', all VM's network connection would be destroy and cannot be connected back. We need to see if kvm got this problem and look for a method to fix the problem if the problem exist.
N2) We need to know the network performance between VMs as well as between VM and PH.

Disk
D1) We need to test the IO perf of disk on kvm
D2) We need to know how kvm determines /sys/block/sdb/queue/rotational is 0 or 1. This would affect a bug in YFS

Cpu Overcommit ( least priority )
C1) We need to know what would happen when CPU overcommit on KVM.
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06-07-2018, 05:08 PM
Post: #2
RE: KVM behaviour
@changxy,

please follow http://tab.d-thinker.org/showthread.php?tid=11430 to install kvm on tetra and test for the behaviours in headpost.
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06-11-2018, 02:05 PM
Post: #3
RE: KVM behaviour
(06-07-2018 05:08 PM)rayluk Wrote:  @changxy,

please follow http://tab.d-thinker.org/showthread.php?tid=11430 to install kvm on tetra and test for the behaviours in headpost.

Since I am using SSH to connect with tetra, I can't use virt-manager, there is no display for me. Do you have any advice for me?
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06-11-2018, 02:24 PM
Post: #4
RE: KVM behaviour
(06-11-2018 02:05 PM)changxy Wrote:  
(06-07-2018 05:08 PM)rayluk Wrote:  @changxy,

please follow http://tab.d-thinker.org/showthread.php?tid=11430 to install kvm on tetra and test for the behaviours in headpost.

Since I am using SSH to connect with tetra, I can't use virt-manager, there is no display for me. Do you have any advice for me?

I have suggested you to use qemu ( http://tab.d-thinker.org/showthread.php?...http://tab.d-thinker.org/showthread.php?tid=11430&pid=7509 ) to build VMs. Please let me know what do you want to use virt-manager for.
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06-11-2018, 02:41 PM
Post: #5
RE: KVM behaviour
(06-11-2018 02:24 PM)rayluk Wrote:  
(06-11-2018 02:05 PM)changxy Wrote:  
(06-07-2018 05:08 PM)rayluk Wrote:  @changxy,

please follow http://tab.d-thinker.org/showthread.php?tid=11430 to install kvm on tetra and test for the behaviours in headpost.

Since I am using SSH to connect with tetra, I can't use virt-manager, there is no display for me. Do you have any advice for me?

I have suggested you to use qemu ( http://tab.d-thinker.org/showthread.php?...http://tab.d-thinker.org/showthread.php?tid=11430&pid=7509 ) to build VMs. Please let me know what do you want to use virt-manager for.

I just want to try few KVM comments and make sure it works.
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06-11-2018, 02:56 PM
Post: #6
RE: KVM behaviour
(06-11-2018 02:41 PM)changxy Wrote:  
(06-11-2018 02:24 PM)rayluk Wrote:  
(06-11-2018 02:05 PM)changxy Wrote:  
(06-07-2018 05:08 PM)rayluk Wrote:  @changxy,

please follow http://tab.d-thinker.org/showthread.php?tid=11430 to install kvm on tetra and test for the behaviours in headpost.

Since I am using SSH to connect with tetra, I can't use virt-manager, there is no display for me. Do you have any advice for me?

I have suggested you to use qemu ( http://tab.d-thinker.org/showthread.php?...http://tab.d-thinker.org/showthread.php?tid=11430&pid=7509 ) to build VMs. Please let me know what do you want to use virt-manager for.

I just want to try few KVM comments and make sure it works.

I think you mean KVM commands.

If you want some "vir" command to verify that the VM is working, you can use virsh list.

But, please note that for the VM created by the qemu commands, they are NOT managed by the virsh commands.
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