Lo 2Kb 2Kb CPU% MEM% VIRT RES PID USER NI S TIME+ IOR/s IOW/s Command NETWORK Rx/s Tx/s TASKS 253 (883 thr), 1 run, 252 slp, 0 oth sorted automatically by cpu_percent, flat view Glances – Linux System Monitoring Tool TecMint (LinuxMint 18 64bit / Linux 4.4.0-21-generic) Uptime: 2:16:06ĬPU 16.4% nice: 0.1% LOAD 4-core MEM 60.5% active: 4.90G SWAP 0.1% Tasks: 243 total, 1 running, 242 sleeping, 0 stopped, 0 zombie There are numerous ways of monitoring system load average including uptime which shows how long the system has been running, number of users together with load averages: $ uptimeĠ7:13:53 up 8 days, 19 min, 1 user, load average: 1.98, 2.15, 2.21ĭisplay Running Linux Processes top - 12:51:42 up 2:11, 1 user, load average: 1.22, 1.12, 1.26 But this is not the case with Linux, it includes processes in uninterruptible sleep states those waiting for other system resources like disk I/O etc. Nearly all Unix-like systems count only processes in the running or waiting states.A downright idle Linux system may have a load average of zero, excluding the idle process.All if not most systems powered by Linux or other Unix-like systems will possibly show the load average values somewhere for a user.In Linux, the load-average is technically believed to be a running average of processes in it’s (kernel) execution queue tagged as running or uninterruptible. Load average – is the average system load calculated over a given period of time of 1, 5 and 15 minutes.System load/CPU Load – is a measurement of CPU over or under-utilization in a Linux system the number of processes which are being executed by the CPU or in waiting state.In this article, we will explain one of the critical Linux system administration tasks – performance monitoring in regards to system/CPU load and load averages.īefore we move any further, let’s understand these two important phrases in all Unix-like systems:
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