Webinar

The Ticking Beast: a Deep Dive Into Timers, Timekeeping, Tick and Tickless Kernels

February 22, 2024 | 11:00 AM PST (UTC-8)

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This webinar has a new date: Thursday, February 22

Join us for an interactive, complimentary Mentorship Session exploring The Ticking Beast: a Deep Dive Into Timers, Timekeeping, Tick and Tickless Kernels with Joel Fernandes, Staff Software Engineer, Google

The Timekeeping subsystem and Timers subsystem are critical components of the Linux kernel. Its proper functioning is required for a number of critical subsystems including the Scheduler and Ftrace. This talk gives the audience a tour of the internals of these systems and the challenges that modern requirements such as power efficiency, speed of accessing a clock and dealing with clock drift present. We also go over how CPU idle affects the tick, how CPU idle affects timers, and the concept of broadcast timers.

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Joel Fernandes

Staff Software Engineer, Google

Speaker

Joel Agnel Fernandes is a seasoned systems software developer with 15 years of experience. He has worked with renowned companies such as Google, Amazon, and Texas Instruments, contributing to various projects and making significant improvements to the Linux kernel. As a Linux kernel maintainer, Joel helps with maintaining the RCU subsystem. He frequently handles intricate challenges related to locking, timers, interrupts, and scheduling as RCU involves interactions with all these. A contributor to open source projects and a speaker at conferences, Joel's passion for technology and innovation shines through his work.