Imported KB about sysstat

2026-02-09 05:44:23 +00:00 · 2022-10-09 14:49:28 +02:00
parent ab2277fc8a
commit 7956632687
1 changed files with 72 additions and 0 deletions
--- a/base/sysstat.md
+++ b/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/