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Why are Huawei cloud computing products switched from Xen to KVM?

Created: Jan 27, 2022 05:56:27Latest reply: Jan 28, 2022 10:31:00 219 4 0 0 0
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Hi,

Why are Huawei cloud computing products switched from Xen to KVM? What are the advantages of KVM over Xen?

Thanks in advance!

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Featured Answers
olive.zhao
Admin Created Jan 27, 2022 06:04:46

Hello, friend!

Compared with the Xen architecture, KVM has the following advantages:

1. Better Ecosystem

  • Famous organizations such as RedHat and OVA protect KVM.

  • Deep integration with the Linux kernel itself. A wider range of hardware compatibility with the Linux kernel:

  • The most active open source community.

2. Better architecture

  • It is the first product to use hardware-assisted virtualization. It uses the Linux bare metal kernel without PVOPS performance loss.

  • The KVM is a part of the Linux kernel. It is deeply integrated with the kernel itself and can reuse the complete process scheduling, memory management, and I/O management codes in the Linux kernel.

  • Enjoy the benefits of the continuous maturity and advancement of the Linux kernel technology for a long time, and optimize the implementation of KVM.

3. Stronger performance

  • KVM was designed with enterprise-class performance in mind.

  • Third-party authoritative Specvirt test: KVM performance outperforms Xen.

  • The access and mapping between VMs and host kernels to shared areas do not require Hypervisor authorization. Therefore, the entire access path is shorter and the architecture is better.

Hope this helps!

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Sothea_nh
Sothea_nh Created Jan 27, 2022 08:23:05 (0) (0)
 
All Answers
olive.zhao
olive.zhao Admin Created Jan 27, 2022 06:04:46

Hello, friend!

Compared with the Xen architecture, KVM has the following advantages:

1. Better Ecosystem

  • Famous organizations such as RedHat and OVA protect KVM.

  • Deep integration with the Linux kernel itself. A wider range of hardware compatibility with the Linux kernel:

  • The most active open source community.

2. Better architecture

  • It is the first product to use hardware-assisted virtualization. It uses the Linux bare metal kernel without PVOPS performance loss.

  • The KVM is a part of the Linux kernel. It is deeply integrated with the kernel itself and can reuse the complete process scheduling, memory management, and I/O management codes in the Linux kernel.

  • Enjoy the benefits of the continuous maturity and advancement of the Linux kernel technology for a long time, and optimize the implementation of KVM.

3. Stronger performance

  • KVM was designed with enterprise-class performance in mind.

  • Third-party authoritative Specvirt test: KVM performance outperforms Xen.

  • The access and mapping between VMs and host kernels to shared areas do not require Hypervisor authorization. Therefore, the entire access path is shorter and the architecture is better.

Hope this helps!

View more
  • x
  • convention:

Sothea_nh
Sothea_nh Created Jan 27, 2022 08:23:05 (0) (0)
 
Sothea_nh
Sothea_nh Created Jan 27, 2022 08:23:11

cool
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Saqibaz
Saqibaz Created Jan 28, 2022 10:31:00

Nice
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