Current File : //usr/share/doc/bpftrace/examples/loads_example.txt
Demonstrations of loads, the Linux bpftrace/eBPF version.
This is a simple tool that prints the system load averages, to three decimal
places each (not that it really matters), as a demonstration of fetching
kernel structures from bpftrace:
# ./loads.bt
Attaching 2 probes...
Reading load averages... Hit Ctrl-C to end.
21:29:17 load averages: 2.091 2.048 1.947
21:29:18 load averages: 2.091 2.048 1.947
21:29:19 load averages: 2.091 2.048 1.947
21:29:20 load averages: 2.091 2.048 1.947
21:29:21 load averages: 2.164 2.064 1.953
21:29:22 load averages: 2.164 2.064 1.953
21:29:23 load averages: 2.164 2.064 1.953
^C
These are the same load averages printed by uptime:
# uptime
21:29:24 up 2 days, 18:57, 3 users, load average: 2.16, 2.06, 1.95
For more on load averages, see my post:
http://www.brendangregg.com/blog/2017-08-08/linux-load-averages.html
Mini Shell