Performance Monitoring

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This topic comprises several aspects of internal performance of a device as a computing unit, i.e. "stand-alone" computer performance. The following computing facilities are covered here:

•	central processing units (CPUs) -- see CPU Performance Monitoring;

•	storage units (memory, hard disks, optical disks etc.) -- see Storage Monitoring;

•	software running on the host (processes) -- see Process Monitoring.

Network performance and application/service monitoring (often regarded as a part of performance monitoring) are described separately.

Several device performance aspects, including gauges for CPU Load, Physical Memory Usage, Virtual Memory Usage can be displayed in real-time in a single window using IP Host Information widget.

Another stratum of performance monitoring -- concerning virtualization technologies -- should be mentioned here. AggreGate Network Manager monitors various metrics of VMware ESX server virtual machines performance. Being described in a separate dedicated section (see VMware Server Monitoring), virtualized infrastructure performance monitoring tools are also mentioned in the corresponding subsections below.