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Sysstat - The sar, mpstat, and iostat commands
The sysstat package contains the sar, mpstat, and
iostat commands for Linux. 'Sar' collects and reports system activity
information; this information can also be saved in a system activity
file for future inspection. 'Iostat' reports CPU statistics and I/O
statistics for tty devices and disks such as I/O transfer rates,
paging activity, process-related activites, interrupts, network
activity, memory and swap space utilization, CPU utilization, kernel
activities, and TTY statistics, among others. Sysstat fully supports
both UP and SMP machines.
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DocumentationUser manpages available in HTML format from http://perso.wanadoo.fr/sebastien.godard/
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