PRTG Manual: PerfCounter Custom Sensor

The PerfCounter Custom sensor monitors a configured set of Windows performance counters. You can define your own channels.

i_round_blueThis sensor does not have any predefined channels.

PerfCounter Custom Sensor

PerfCounter Custom Sensor

i_square_cyanFor a detailed list and descriptions of the channels that this sensor can show, see section Channel List.

Sensor in Other Languages

Dutch: Prestatie Meters Klantspecifiek

French: Windows PerfCounter personnalisé

German: Leistungsindikator (benutzerdef.)

Japanese: パフォーマンスカウンターカスタム

Portuguese: PerfCounter (customizado)

Russian: Специальные настройки PerfCounter

Simplified Chinese: 性能计数器自定义

Spanish: PerfCounter (personalizado)

Remarks

This sensor requires credentials for Windows systems in the settings of the parent device.

This sensor requires that the Remote Registry Windows service runs on the target computer.

This sensor requires at least Windows Server 2008 R2 on the probe system.

You cannot add different performance counters with the same name to one sensor.

If a performance counter contains angle brackets (< or >), do not edit the channel settings because this might cause an error.

This sensor supports the IPv6 protocol.

This sensor has a low performance impact.

See the Knowledge Base: How can I find out the names of available performance counters?

See the Knowledge Base: My performance counter sensor does not work. What can I do?

i_podYou cannot add this sensor to the hosted probe of a PRTG Hosted Monitor instance. If you want to use this sensor, add it to a remote probe device.

Detailed Requirements

Requirement

Description

Windows credentials

This sensor requires credentials for Windows systems in the settings of the parent device. Preferably, use Windows domain credentials.

i_round_redIf you use local credentials, make sure that the same Windows user accounts (with the same user name and password) exist on both the probe system and the target computer. Otherwise, a connection via performance counters is not possible. However, WMI connections might still work.

i_round_redThe user account has to be a member of the Performance Monitor Users user group on the target system.

Windows version

For this sensor to work with Windows performance counters, make sure that at least Windows Server 2008 R2 is installed on the probe system (on every cluster node, if on a cluster probe).

Remote Registry Windows service

For this sensor to work with Windows performance counters, make sure that the Remote Registry Windows service runs on the target computer. If this service does not run, a connection via performance counters is not possible.

To enable the service, log in to the respective computer and open the services manager (for example, via services.msc). In the list, find the respective service and set its Start Type to Automatic.

Add Sensor

The Add Sensor dialog appears when you manually add a new sensor to a device. It only shows the settings that are required to create the sensor. You can change nearly all settings on the sensor's Settings tab after creation.

Performance Counter Settings

Setting

Description

Performance Counter

Enter the performance counters that you want to query. Enter each counter in one line. PRTG creates one channel for each performance counter that you select. Use the following syntax: the name of the counter, followed by two colons (::), and the unit.

Example: \Processor(_Total)\% Processor Time::%

i_round_blueYou cannot monitor different performance counters with the same name in one sensor. The sensor uses the performance counter as the channel name, so this would create duplicate channels, which PRTG does not support. If you want to monitor different performance counters with the same name, add one sensor for each counter. You can also create a custom sensor. For example, you can write a PowerShell query that connects to the target device, retrieves the desired counters with the Get-Counter cmdlet, and reports them to PRTG as individual channels.

i_round_redIf a custom performance counter includes angle brackets (< or >), do not edit the channel settings (for example, limits) after sensor creation. This might lead to a malfunctioning sensor.

Mode

Determine if the sensor displays the returned value as an absolute value or if it displays the difference between the last and the current value:

Absolute (recommended): Display the returned value as an absolute value.

Difference: Display the difference between last and current value.
i_round_redMake sure that all performance counters that you monitor are capable of this mode.

Basic Sensor Settings

Click the Settings tab of a sensor to change its settings.

Basic Sensor Settings

Basic Sensor Settings

Setting

Description

Sensor Name

Enter a name to identify the sensor. By default, PRTG shows this name in the device tree, as well as in alarms, logs, notifications, reports, maps, libraries, and tickets.

i_round_blueIf the name contains angle brackets (<>), PRTG replaces them with braces ({}) for security reasons. For more information, see the Knowledge Base: What security features does PRTG include?

Parent Tags

Shows tags that the sensor inherits from its parent device, parent group, and parent probe.

i_round_blueThis setting is for your information only. You cannot change it.

Tags

Enter one or more tags. Confirm each tag with the Spacebar key, a comma, or the Enter key. You can use tags to group objects and use tag-filtered views later on. Tags are not case-sensitive. Tags are automatically inherited.

i_round_blueIt is not possible to enter tags with a leading plus (+) or minus (-) sign, nor tags with parentheses (()) or angle brackets (<>).

i_round_blueFor performance reasons, it can take some minutes until you can filter for new tags that you added.

The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:

performancecounter

performancecountercustom

Priority

Select a priority for the sensor. This setting determines the position of the sensor in lists. The highest priority is at the top of a list. Choose from the lowest priority (i_priority_1) to the highest priority (i_priority_5).

i_round_blueUsually, a sensor connects to the IP Address/DNS Name of the parent device. See the device settings for details. For some sensors, you can explicitly define the monitoring target in the sensor settings.

Performance Counter Settings

Performance Counter Settings

Performance Counter Settings

Setting

Description

Performance Counters

Shows the performance counters that this sensor monitors.

i_round_bluePRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.

Value Display Mode

Shows the mode in which the sensor displays the returning values.

i_round_bluePRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.

Sensor Display

Sensor Display

Sensor Display

Setting

Description

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, the last value of the primary channel is always displayed below the sensor's name. The available options depend on what channels are available for this sensor.

i_round_blueYou can set a different primary channel later by clicking b_channel_primary below a channel gauge on the sensor's Overview tab.

Graph Type

Define how different channels are shown for this sensor:

Show channels independently (default): Show a graph for each channel.

Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
i_round_redYou cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you enable Stack channels on top of each other as Graph Type. Select a unit from the list. All channels with this unit are stacked on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Inherited Settings

By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click b_inherited_enabled under the corresponding setting name to disable the inheritance and to display its options.

i_square_cyanFor more information, see section Inheritance of Settings.

Scanning Interval

Scanning Interval

Scanning Interval

i_square_cyanFor more information, see section Root Group Settings, section Scanning Interval.

Schedules, Dependencies, and Maintenance Window

i_round_blueYou cannot interrupt the inheritance for schedules, dependencies, and maintenance windows. The corresponding settings from the parent objects are always active. However, you can define additional schedules, dependencies, and maintenance windows. They are active at the same time as the parent objects' settings.

Schedules, Dependencies, and Maintenance Window

Schedules, Dependencies, and Maintenance Window

i_square_cyanFor more information, see section Root Group Settings, section Schedules, Dependencies, and Maintenance Window.

Access Rights

Access Rights

Access Rights

i_square_cyanFor more information, see section Root Group Settings, section Access Rights.

Channel Unit Configuration

i_round_blueWhich channel units are available depends on the sensor type and the available parameters. If no configurable channels are available, this field shows No configurable channels.

Channel Unit Configuration

Channel Unit Configuration

i_square_cyanFor more information, see section Root Group Settings, section Channel Unit Configuration.

Channel List

i_round_blueWhich channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.

Channel

Description

[Custom]

The Windows performance counters in different channels

i_square_cyanTo find available performance counters and their names on the target system, see the Knowledge Base: How can I find out the names of available performance counters?

Downtime

In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status

More

i_square_blueKNOWLEDGE BASE

How can I find out the names of available performance counters?

https://kb.paessler.com/en/topic/50673

My performance counter sensor does not work. What can I do?

https://kb.paessler.com/en/topic/59804

What security features does PRTG include?

https://kb.paessler.com/en/topic/61108