From 517a443636daa1e8085cb4e5325524a54e8a8fd7 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Tue, 17 Oct 2023 11:30:23 +0200
Subject: Merging upstream version 1.43.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!--startmeta
+custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/integrations/inter_process_communication.md"
+meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/metadata.yaml"
+sidebar_label: "Inter Process Communication"
+learn_status: "Published"
+learn_rel_path: "Data Collection/Linux Systems/IPC"
+message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE"
+endmeta-->
+
+# Inter Process Communication
+
+
+<img src="https://netdata.cloud/img/network-wired.svg" width="150"/>
+
+
+Plugin: proc.plugin
+Module: ipc
+
+<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
+
+## Overview
+
+IPC stands for Inter-Process Communication. It is a mechanism which allows processes to communicate with each
+other and synchronize their actions.
+
+This collector exposes information about:
+
+- Message Queues: This allows messages to be exchanged between processes. It's a more flexible method that
+  allows messages to be placed onto a queue and read at a later time.
+
+- Shared Memory: This method allows for the fastest form of IPC because processes can exchange data by
+  reading/writing into shared memory segments.
+
+- Semaphores: They are used to synchronize the operations performed by independent processes. So, if multiple
+  processes are trying to access a single shared resource, semaphores can ensure that only one process
+  accesses the resource at a given time.
+
+
+
+
+This collector is supported on all platforms.
+
+This collector only supports collecting metrics from a single instance of this integration.
+
+
+### Default Behavior
+
+#### Auto-Detection
+
+This integration doesn't support auto-detection.
+
+#### 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.
+
+
+## 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 Inter Process Communication instance
+
+
+
+This scope has no labels.
+
+Metrics:
+
+| Metric | Dimensions | Unit |
+|:------|:----------|:----|
+| system.ipc_semaphores | semaphores | semaphores |
+| system.ipc_semaphore_arrays | arrays | arrays |
+| system.message_queue_message | a dimension per queue | messages |
+| system.message_queue_bytes | a dimension per queue | bytes |
+| system.shared_memory_segments | segments | segments |
+| system.shared_memory_bytes | bytes | bytes |
+
+
+
+## Alerts
+
+
+The following alerts are available:
+
+| Alert name  | On metric | Description |
+|:------------|:----------|:------------|
+| [ semaphores_used ](https://github.com/netdata/netdata/blob/master/health/health.d/ipc.conf) | system.ipc_semaphores | IPC semaphore utilization |
+| [ semaphore_arrays_used ](https://github.com/netdata/netdata/blob/master/health/health.d/ipc.conf) | system.ipc_semaphore_arrays | IPC semaphore arrays utilization |
+
+
+## Setup
+
+### Prerequisites
+
+No action required.
+
+### Configuration
+
+#### File
+
+There is no configuration file.
+#### Options
+
+
+
+There are no configuration options.
+
+#### Examples
+There are no configuration examples.
+
+
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