How to Identify Linux Bottlenecks with vmstat: CPU, Memory, I/O Explained

This guide shows how to use vmstat to pinpoint whether high load averages on a Linux system are caused by CPU saturation, insufficient memory, or slow I/O, by interpreting each column of the vmstat output.

LinuxOperationsperformance tuning

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How to Identify Linux Bottlenecks with vmstat: CPU, Memory, I/O Explained

MaGe Linux Operations

Jul 31, 2014 · Operations

Master Linux Performance Monitoring with sar: A Complete Guide

This article explains how to use the sar (System Activity Reporter) tool on Linux to collect and analyze performance data, covering past and real‑time statistics, CPU, memory, I/O and swap metrics, installation steps, and a full list of command‑line options.

CPU usageLinux performanceMemory Usage

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Master Linux Performance Monitoring with sar: A Complete Guide