The article explains CPU utilization and CPU load, clarifies time‑slice concepts, distinguishes user‑mode and system‑mode usage, describes how load reflects the average number of runnable and waiting tasks, and provides Linux commands and troubleshooting steps for high‑load/low‑utilization and vice‑versa scenarios.
This article explains the difference between CPU utilization and CPU load, describes how to interpret these metrics, and provides practical Linux commands and step‑by‑step methods for diagnosing high load with low utilization or vice versa, including common I/O and indexing issues.
The article explains how to use the 'display interface brief' command to view interface status, interpret various state symbols, read input/output utilization percentages, and calculate actual traffic rates for each interface on a network device.
The article explains why iostat’s %util and svctm values, reliable for traditional disks, become misleading on modern SSDs and RAID arrays, and provides step‑by‑step methods, formulas, and practical benchmarks to reinterpret these metrics for accurate storage performance analysis.
The article reviews Google’s Borg paper, highlighting how Borg distinguishes production and non‑production tasks, manages jobs and containers, improves utilization through mixed‑workload scheduling, enforces isolation via overload and over‑commitment controls, and compares Borg’s approach to other cluster managers.
