Real-Time Virtual Machines with Linux and kvm

This talk describes how to use some available technologies (the SCHED_DEADLINE scheduling policy, the PREEMPT_RT patchset, etc…) to execute real-time applications in kvm-based virtual machines while still providing performance guarantees to the virtualized applications.

In recent years, there has been a growing interest in supporting virtualized services even in embedded and real-time systems. However, executing real-time applications (characterized by temporal constraints) in virtual machines is not straightforward and presents some non-trivial challenges. This talk will describe how to use some technologies already available in the Linux kernel (the SCHED_DEADLINE scheduling policy, the PREEMPT_RT patchset, etc…) to execute real-time applications in kvm-based virtual machines while still providing performance guarantees to the virtualized applications. After presenting the problem (and providing a quick summary about real-time scheduling), it will be shown how to configure the host and guest kernels and the virtual machine, and how to schedule the VM threads in order to achieve predictable response times and to provide real-time guarantees.

track icon Internals
duration icon 45 min
language icon English
level icon All

Video

This talk video is not yet available, but we upload new videos and slides every month.

What is LinuxLab?

LinuxLab - Building smarter devices - is the conference on Linux, kernel, embedded, build systems, security, virtualization technologies and open source. LinuxLab is organized by Develer, the company who launched events like Better Software, Better Embedded, QtDay, PyCon and EuroPython.

Talk slides

The talk slides are not yet available.