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The Sysstat Suite of Resource Monitoring Tools

Sysstat is a sophisticated tool.

Sysstat contains the following tools related to collecting I/O and CPU statistics:

iostat
Displays an overview of CPU utilization, along with I/O statistics for one or more disk drives.

mpstat
Displays more in-depth CPU statistics.
Sysstat also contains tools that collect system resource utilization data and create daily reports based on that data.

These tools are:

sadc
Known as the system activity data collector, sadc collects system resource utilization information and writes it to a file.

sar
Producing reports from the files created by sadc, sar reports can be generated interactively or written to a file for more intensive analysis.

The Sysstat Suite of Resource Monitoring Tools

Sysstat contains the following tools related to collecting I/O and CPU statistics:

iostat
Displays an overview of CPU utilization, along with I/O statistics for one or more disk drives.

mpstat
Displays more in-depth CPU statistics.

Sysstat also contains tools that collect system resource utilization data and create daily reports based on that data. These tools are:

sadc
Known as the system activity data collector, sadc collects system resource utilization information and writes it to a file.

sar
Producing reports from the files created by sadc, sar reports can be generated interactively or written to a file for more intensive analysis.