Tanel Poder personal blog
Is Your Linux Version Hiding Interrupt CPU Usage from You?
TL;DR: Some Linux distros and even different kernel versions within a distro have disabled IRQ time accounting. In such case, your monitoring tools will report zero time spent in hardware interrupt handlers (shown as %hi, %irq, hiq, etc). It’s easy to check how your kernel is behaving by looking at /proc/stat and you…
- Points
- 133
- HN comments
- 16
- Submissions
- 1
- Cited by
- 0 commenters
Systems & PerformanceInfrastructure & DevOps2021
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Feb 15, 2021 | Is Your Linux Version Hiding Interrupt CPU Usage from You? by tanelpoder | 133 | 16 |
