Sysstat

sysstat (system statistics) is a collection of performance monitoring tools for Linux. It is available on Unix and Unix-like operating systems. ^[2]

Software included in sysstat package:

sar(1): Collect, report, or save system activity information. – Linux User Commands Manual
sa1(8): Collect and store binary data in the system activity daily data file. – Linux Administration and Privileged Commands Manual
sa2(8): shell variant of sar, supporting the same flags as sar command which write a daily report in the /var/log/sa directory. – Linux Administration and Privileged Commands Manual
sadf(1): , similar to sar but can write its data in different formats (CSV, XML, etc.). This is useful to load performance data into a database, or import them in a spreadsheet to make graphs.
iostat(1): reports basic CPU statistics and input/output statistics for devices, partitions and network filesystems. – Linux User Commands Manual
mpstat(1): reports individual or combined processor related statistics. – Linux User Commands Manual
pidstat(1): reports statistics for Linux tasks (processes) : I/O, CPU, memory, etc. – Linux User Commands Manual
nfsiostat(1): reports input/output statistics for network filesystems (NFS). – Linux User Commands Manual
cifsiostat(1): reports I/O statistics for CIFS resources. – Linux User Commands Manual

References

^ "Sysstat: Tags". GitHub.
^ "SYSSTAT Howto: A Deployment and Configuration Guide for Linux Servers". Linux.com | The source for Linux information. 10 August 2009. Retrieved 4 September 2018.