| Utility/Package | What It Does |
| Mandatory Packages | |
| blktrace | Performs block I/O tracing tasks to determine the time required to perform tasks such as data transfers. See http://www.cse.unsw.edu.au/~aaronc/iosched/doc/blktrace.html for additional details. |
| sysstat (includes: sar, sadf, mpstat, iostat, tapestat, pidstat, cifsiostat, and sa) | Provides access to a set of utilities to perform a series of specific, system-level checks. For example, the sar command collects, reports, and saves system activity information. See http://sebastien.godard.pagesperso-orange.fr/ for additional details. |
| Default Packages | |
| dstat | Generates system resource statistics for CPU, disk, I/O, memory, and network activity. See http://dag.wiee.rs/home-made/dstat/ for additional details. |
| iotop | Focuses on generating statistics for block read and block write requests for disks. See http://linux.die.net/man/1/iotop for additional information. |
| oprofile | Performs continuous, system-wide monitoring of resources and activity. See http://oprofile.sourceforge.net/news/ for additional information. |
| Optional Packages | |
| oprofile-jit | Provides the capability of creating Executable and Linkable Format (ELF) files after an OProfile monitoring session. See http://oprofile.sourceforge.net/doc/getting-jit-reports.html for additional details. |
Group packages that contain mandatory packages install those packages no matter how else you might install the group package. Mandatory packages give you the minimal functionality needed to use the group package.