The load average is the average system load on a Ubuntu server for a defined period of time. In other words, it is the CPU demand of a server that includes sum of the running and the waiting threads. In this article, we will share 4 ways to check the load average in Ubuntu.
What Is Load average in Ubuntu?
System load is a measure of the amount of work (meaning the number of currently active and queued processes) being performed by the CPU as a percentage of total capacity. Load averages that represent system activity over time, because they present a much more accurate picture of the state of our system, are a better way to represent this metric.
On Ubuntu, load averages are (or try to be) “system load averages”, for the system as a whole, measuring the number of threads that are working and waiting to work (CPU, disk, uninterruptible locks). Put differently, it measures the number of threads that aren’t completely idle. Advantage: includes demand for different resources.
How to Check Load Average in Ubuntu?
We have 4 ways to check the load average on Ubuntu.
- cat /proc/loadavg
- uptime
- w
- top
Check load average from /proc/loadavg in Ubuntu
root@localhost:~]# cat /proc/loadavg
0.18 0.28 0.30 2/527 4237
root@localhost:~]#
Check load average with w command in Ubuntu
[root@localhost:~]# w
09:07:09 up 8:18, 2 users, load average: 1.00, 1.00, 1.00
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root tty1 – 00:52 10:52 0.13s 0.13s -bash
root pts/0 192.168.122.1 01:01 0.00s 0.34s 0.00s w
[root@localhost:~]#
Check load average with uptime command in Ubuntu
[root@localhost ~]# uptime
09:08:57 up 8:20, 2 users, load average: 1.00, 1.00, 1.00
[root@localhost ~]#
Check load average with top command in Ubuntu
[root@localhost ~]# top
top – 09:10:32 up 8:21, 2 users, load average: 1.00, 1.00, 1.00
Tasks: 93 total, 2 running, 91 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.3%us, 0.3%sy, 0.0%ni, 99.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1030908k total, 934772k used, 96136k free, 76852k buffers
Swap: 2064376k total, 0k used, 2064376k free, 711632k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2232 root 20 0 2672 1080 856 R 0.7 0.1 0:00.10 top
1377 nrpe 20 0 5972 1076 688 S 0.3 0.1 0:03.56 nrpe
1649 root 20 0 12476 3460 2708 S 0.3 0.3 0:03.28 sshd
1 root 20 0 2872 1372 1168 S 0.0 0.1 0:00.73 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd