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sar — Monitor performance of various Linux subsystems. More information: <https://manned.org/sar>.

Submitted by: @import:tldr-pages··
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subsystemscommandvariousmonitorsarclilinuxperformance
linux

Problem

How to use the sar command: Monitor performance of various Linux subsystems. More information: <https://manned.org/sar>.

Solution

sar — Monitor performance of various Linux subsystems. More information: <https://manned.org/sar>.

Report I/O and transfer rate issued to physical devices, one per second (press <Ctrl c> to quit):
sar -b {{1}}


Report a total of 10 network device statistics, one per 2 seconds:
sar -n DEV {{2}} {{10}}


Report CPU utilization, one per 2 seconds:
sar -u ALL {{2}}


Report a total of 20 memory utilization statistics, one per second:
sar -r ALL {{1}} {{20}}


Report the run queue length and load averages, one per second:
sar -q {{1}}


Report paging statistics, one per 5 seconds:
sar -B {{5}}

Code Snippets

Report I/O and transfer rate issued to physical devices, one per second (press `<Ctrl c>` to quit)

sar -b {{1}}

Report a total of 10 network device statistics, one per 2 seconds

sar -n DEV {{2}} {{10}}

Report CPU utilization, one per 2 seconds

sar -u ALL {{2}}

Report a total of 20 memory utilization statistics, one per second

sar -r ALL {{1}} {{20}}

Report the run queue length and load averages, one per second

sar -q {{1}}

Context

tldr-pages: linux/sar

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