sysstat is an open source software that is comprised of several command-line utilities for the Linux operating system, allowing users to collect and report system activity information.
Among some of the included tools, we can mention sar, mpstat, sadf, iostat, cifsiostat, nfsiostat, sa, and pidstat.
The software can monitor a big number of various metrics, allows users to configure the length of data history to keep, supports both SMP and UP machines, supports hotplug CPUs.
The applications included in sysstat are written in C and require very little CPU time to run.
- A new option (-v) has been added to pidstat, enabling the user to display the number of threads and file descriptors associated with tasks.
- Several bugs have been fixed in pidstat.