Sysstat

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sysstat (system statistics) is a collection of performance monitoring tools for Linux. It is available on Unix and Unix-like operating systems. ^[1]

Software included in sysstat package:

• sar [6], Collect, report, or save system activity information.
• iostat (1) reports basic CPU statistics and input/output statistics for devices, partitions and network filesystems.
• mpstat(1) reports individual or combined processor related statistics.
• pidstat(1) reports statistics for Linux tasks (processes) : I/O, CPU, memory, etc.
• nfsiostat(1) reports input/output statistics for network filesystems (NFS).
• cifsiostat(1) reports I/O statistics for CIFS resources.