https://www.emblogic.com/forum/categories/003-01-92-interview-questions-introductory-concepts/feed.rss Thu, 13 Aug 26 20:49:42 +0530 003.01.92.Interview-Questions-Introductory-Concepts - EmbLogic en-CA https://www.emblogic.com/forum/discussion/1625/5-using-pidstat-for-process-monitoring Sat, 01 Jun 2024 13:15:11 +0530 pravjot 1625@/forum/discussions 5. Using `pidstat` for Process Monitoring

What are the advantages of using `pidstat` for per-process monitoring compared to `top` and `iotop`? How can you use `pidstat` to monitor CPU, memory, and disk usage over time for a specific process? Provide an example command.

]]> https://www.emblogic.com/forum/discussion/1624/4-per-process-io-monitoring-with-iotop Sat, 01 Jun 2024 13:14:57 +0530 pravjot 1624@/forum/discussions 4. Per-Process I/O Monitoring with `iotop`

How does the `iotop` tool help in monitoring I/O resources used by individual processes? What do the `TID`, `PRIO`, and I/O columns indicate?

]]> https://www.emblogic.com/forum/discussion/1623/3-monitoring-io-with-iostat Sat, 01 Jun 2024 13:07:58 +0530 pravjot 1623@/forum/discussions 3. Monitoring I/O with `iostat`

Explain how the `iostat` command can be used to monitor I/O performance. What information does the `tps`, `kB_read/s`, `kB_wrtn/s`, `kB_read`, and `kB_wrtn` columns provide?

]]> https://www.emblogic.com/forum/discussion/1622/2-analyzing-cpu-time-with-vmstat Sat, 01 Jun 2024 13:07:45 +0530 pravjot 1622@/forum/discussions 2. Analyzing CPU Time with `vmstat`

Describe what the `us`, `sy`, `id`, and `wa` columns represent in the CPU section of `vmstat` output. How can these values help you understand CPU utilization?

]]> https://www.emblogic.com/forum/discussion/1621/1-understanding-vmstat-output Sat, 01 Jun 2024 13:07:33 +0530 pravjot 1621@/forum/discussions 1. Understanding `vmstat` Output

What categories of information does the `vmstat` command provide, and how can you interpret its output to monitor system performance?

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