Understanding ‘Load Average’ in Linux
1. Introduction: Why is the system slow when CPU usage is low? One early morning, a monitoring alert went off: “Server load average spiked to 20!” You quickly log into the server: $ uptime 12:30:01 up 30 days, 5:22, 2 users, load average: 20.12, 18.45, 15.67 Next, check <span>top</span>: %Cpu(s): 2.1%us, 0.5%sy, 0.0%ni, 97.0%id, 0.3%wa, … Read more