Скачать или смотреть How Linux Kernel Calculates Uptime Using jiffies and HZ | Kernel Internal Explained

Ever wondered how the Linux kernel tracks *system uptime* since boot? In this video, we dive deep into *kernel-level variables* – `jiffies` and `HZ` – and how they work together to calculate the total **seconds the system has been running**.

You’ll learn:
What is `HZ` in the Linux kernel?
What are `jiffies`?
How to calculate system uptime using `jiffies / HZ`
How to check these values on a Linux machine
Real-world use in kernel development and performance monitoring

Whether you're preparing for **GATE, OS interviews, or kernel development**, this concept is a must-know!

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