Sysstat12.5.6

The sysstat package contains the sar, sadf, iostat, cifsiostat, pidstat and mpstat commands for Linux. The sar command collects and reports system activity information. The information collected by sar can be saved in a file in a binary format for future inspection. The statistics reported by sar concern I/O transfer rates, paging activity, process-related activities, interrupts, network activity, memory and swap space utilization, CPU utilization, kernel activities and TTY statistics, among others. The sadf command may be used to display data collected by sar in various formats (CSV, XML, database-friendly, etc.) and to draw graphs (SVG). The iostat command reports CPU utilization and I/O statistics for disks and network filesystems. The pidstat command reports statistics for Linux tasks (processes). The mpstat command reports global and per-processor statistics. Both UP and SMP machines are fully supported. Sysstat has also support for hotplug CPU's, and for National Language (NLS). The nfsiostat command reports I/O statistics for network filesystems. The cifsiostat command reports I/O statistics for CIFS filesystems.