September 13-16, 2022
Dublin, Ireland + Virtual
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Friday, September 16 • 14:50 - 15:30
Tracing VMs Seeing How Host and Guest Interact - Steven Rostedt, Google

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Tracing is a key ingredient for solving complex issues quickly. The Linux kernel tracing infrastructure has been tremendously useful in understanding the complex issues that are happening in the kernel. But now there's a new black-box that needs to be opened. That is how guest VMs act on top of the host hypervisor they are running on. With cloud deployments and encapsulation, VMs are as important as they ever were. They are still heavily used even with the push towards containers. This talk will show how to use trace-cmd (the front end interface to the Linux kernel ftrace infrastructure) and KernelShark to trace and visualize the connection between guest and host. It will also explain how the events between the two are synchronize such that the time lines match. If you are responsible for the performance or stability of a virtual machine on a Linux hypervisor, then this is the talk for you!

avatar for Steven Rostedt

Steven Rostedt

Software engineer, Google
Steven Rostedt currently works for Google on the ChromeOS baseOS performance team. He is the main developer and maintainer for ftrace, the official tracer of the Linux kernel, as well as the user space tools and libraries that interact with the Linux tracing interface. Steven is also... Read More →

Friday September 16, 2022 14:50 - 15:30 IST
Auditorium (Level 3)
  LinuxCon, Tracing