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Windows collects a range of performance metrics from the various system components. Each component amalgamates the performance metrics into a performance object. The up.time Uptime Infrastructure Monitor Windows agent collects the following metrics from the performance objects on a Windows system:

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Each set of performance metrics is averaged over an interval of one second.

CPU

The up.time Uptime Infrastructure Monitor agent outputs the metrics listed below for the entire system, and combines and averages all CPU statistics.

MetricExplanationPerformance Object
% User TimeThe percentage of time that the processor spends in user mode (a processing mode for applications and subsystems).Processor(_Total)
% Privileged TimeThe percentage of time that the processor in privileged mode, in which it has direct access to hardware and memory.Processor(_Total)
% Interrupt TimeThe total amount that the processor uses to handle interrupts from applications or hardware.Processor(_Total)
Available KBytesThe amount of physical memory, in kilobytes, that is available.Memory
% UsageThe percentage of the paging file that is in use.Paging File(_Total)
Processor Queue LengthThe number of queued threads that are waiting to be processed.System

Multi-CPU

The up.time Uptime Infrastructure Monitor agent outputs the metrics listed below for the entire system, per CPU.

MetricExplanationPerformance Object
% User TimeThe percentage of time that the processor spends in user mode (a processing mode for applications and subsystems).Processor(_Total)
% System TimeThe percentage of CPU kernel processes that are in use.Processor(_Total)
% Privileged TimeThe percentage of time that the CPU spends executing kernel commands.Processor(_Total)
% Interrupt TimeThe number of CPU interrupts.Processor(_Total)
Interrupts/secThe rate at which CPU handles interrupts from applications or hardware each second. If the value for Interrupts/sec is high, there could be problems with the hardware on the system.Processor(_Total)
% TotalThe total amount of % User Time, % Privileged Time, and % Interrupt TimeSystem

Memory

The up.time Uptime Infrastructure Monitor agent outputs the metrics listed below for the entire system.

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MetricExplanationPerformance Object
Processes System
System Calls/secThe number of times, per second, that processes that are running on the system make calls to the operating system service routines.System

Disk

The up.time Uptime Infrastructure Monitor agent outputs the metrics listed below for each individual physical disk on the system.

MetricExplanationPerformance Object
% Disk TimeThe percentage of time during which the disk drive is handling read or write requests.PhysicalDisk(<diskname>)
Disk Transfers/secThe number of read and write operations on the disk that occur each second.PhysicalDisk(<diskname>)
Avg. Disk Bytes/TransferThe average number of bytes that have been transferred to or from the disk during write or read operations.PhysicalDisk(<diskname>)
Disk Bytes/secThe rate at which bytes are transferred to or from the disk during write or read operations.PhysicalDisk(<diskname>)
Avg. Disk sec/TransferThe average amount of time, in seconds, that a disk transfer takes to complete.PhysicalDisk(<diskname>)

Network

The up.time Uptime Infrastructure Monitor agent outputs the metrics listed below for each individual network interface on the system.

MetricExplanationPerformance Object
Bytes Received/secThe rate, in seconds, at which bytes are received over a specific network adapter.NetworkInterface(<interface>)
Bytes Sent/secThe rate, in seconds, at which bytes are sent over a specific network adapter.NetworkInterface(<interface>)
Packets Received ErrorsThe number of inbound packets that contained errors, which preventing those packets from being delivered to a higher-layer protocol.NetworkInterface(<interface>)
Packets Outbound ErrorsThe number of outbound packets that could not be transmitted because of errors.NetworkInterface(<interface>)
Segments Retransmitted/secThe rate at which segments, which contain one or more bytes that have been previously transmitted, are sent again.TCP

Process

By default, the up.time Uptime Infrastructure Monitor agent gathers the top 20 processes. These processes are sorted by highest CPU usage.

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