From 79566326876e72468a6630458579d5febe0c72f7 Mon Sep 17 00:00:00 2001 From: Michele Cereda Date: Sun, 9 Oct 2022 14:49:28 +0200 Subject: [PATCH] Imported KB about sysstat --- knowledge base/sysstat.md | 72 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 knowledge base/sysstat.md diff --git a/knowledge base/sysstat.md b/knowledge base/sysstat.md new file mode 100644 index 0000000..4922b82 --- /dev/null +++ b/knowledge base/sysstat.md @@ -0,0 +1,72 @@ +# sysstat + +1. [TL;DR](#tldr) +2. [Installation example](#installation-example) +3. [Further readings](#further-readings) +4. [Sources](#sources) + +## TL;DR + +```sh +# Get all the available stats. +sudo sar -P ALL +``` + +## Installation example + +```sh +sudo apt install sysstat +sudo yum install sysstat + +sudo sed -i.bak 's/ENABLED="false"/ENABLED="true"/' /etc/default/sysstat + +sudo systemctl enable --now sysstat.service +sudo systemctl restart sysstat.service + +# Wait some time (15-20 mins) for some data to be collected. + +sudo sar -P ALL +``` + +Example output: + +```text +Linux 5.10.17-v8+ (raspberrypi) 07/08/21 _aarch64_ (4 CPU) + +10:24:12 LINUX RESTART (4 CPU) + +10:25:01 CPU %user %nice %system %iowait %steal %idle +10:35:01 all 0.01 68.97 0.30 0.00 0.00 30.72 +10:35:01 0 0.00 91.70 0.20 0.00 0.00 8.09 +10:35:01 1 0.00 91.79 0.04 0.00 0.00 8.16 +10:35:01 2 0.00 91.96 0.04 0.00 0.00 8.00 +10:35:01 3 0.03 0.30 0.91 0.00 0.00 98.76 + +10:35:01 CPU %user %nice %system %iowait %steal %idle +10:45:01 all 0.09 68.96 0.31 0.00 0.00 30.65 +10:45:01 0 0.00 91.88 0.12 0.00 0.00 8.00 +10:45:01 1 0.00 54.26 0.49 0.00 0.00 45.25 +10:45:01 2 0.00 91.74 0.04 0.00 0.00 8.22 +10:45:01 3 0.35 37.90 0.57 0.00 0.00 61.17 + +Average: CPU %user %nice %system %iowait %steal %idle +Average: all 0.05 68.97 0.30 0.00 0.00 30.68 +Average: 0 0.00 91.79 0.16 0.00 0.00 8.05 +Average: 1 0.00 73.03 0.27 0.00 0.00 26.70 +Average: 2 0.00 91.85 0.04 0.00 0.00 8.11 +Average: 3 0.19 19.11 0.74 0.00 0.00 79.96 +``` + +## Further readings + +- [tutorial] + +[tutorial]: http://sebastien.godard.pagesperso-orange.fr/tutorial.html + +## Sources + +- [webpage] +- [github page] + +[github page]: https://github.com/sysstat/sysstat +[webpage]: http://sebastien.godard.pagesperso-orange.fr/