Semaphore statistics

Plugin: windows.plugin Module: PerflibObjects

Overview

Inter-Process Communication (IPC) enables different processes to communicate and coordinate with each other. This collector monitors IPC semaphores, which are synchronization tools that:

• Control access to shared resources (like files, memory, or devices).
• Ensure only one process can access a resource at a time.
• Prevent conflicts between competing processes.

It queries for the 'Objects' object from Perflib in order to gather the metrics.

This collector is only supported on the following platforms:

• windows

This collector only supports collecting metrics from a single instance of this integration.

Default Behavior

Auto-Detection

The collector automatically detects all of the metrics, no further configuration is required.

Limits

The default configuration for this integration does not impose any limits on data collection.

Performance Impact

The default configuration for this integration is not expected to impose a significant performance impact on the system.

Setup

Prerequisites

No action required.

Configuration

Options

Option	Description	Default	Required
update every	Data collection frequency.	1	no

via File

The configuration file name for this integration is netdata.conf. Configuration for this specific integration is located in the [plugin:windows:PerflibObjects] section within that file.

The file format is a modified INI syntax. The general structure is:

[section1]
    option1 = some value
    option2 = some other value

[section2]
    option3 = some third value

You can edit the configuration file using the edit-config script from the Netdata config directory.

cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config netdata.conf

Examples

There are no configuration examples.

Alerts

There are no alerts configured by default for this integration.

Metrics

Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

Per System

These metrics refer to the entire system.

This scope has no labels.

Metrics:

Metric	Description	Dimensions	Unit
system.ipc_semaphores	IPC Semaphores	semaphores	semaphores
system.ipc_mutexes	IPC Mutexes	mutexes	mutexes