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/softirq_statistics.md"
+meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/metadata.yaml"
+sidebar_label: "SoftIRQ statistics"
+learn_status: "Published"
+learn_rel_path: "Data Collection/Linux Systems/CPU"
+message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE"
+endmeta-->
+
+# SoftIRQ statistics
+
+
+<img src="https://netdata.cloud/img/linuxserver.svg" width="150"/>
+
+
+Plugin: proc.plugin
+Module: /proc/softirqs
+
+<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
+
+## Overview
+
+In the Linux kernel, handling of hardware interrupts is split into two halves: the top half and the bottom half.
+The top half is the routine that responds immediately to an interrupt, while the bottom half is deferred to be processed later.
+
+Softirqs are a mechanism in the Linux kernel used to handle the bottom halves of interrupts, which can be
+deferred and processed later in a context where it's safe to enable interrupts.
+
+The actual work of handling the interrupt is offloaded to a softirq and executed later when the system
+decides it's a good time to process them. This helps to keep the system responsive by not blocking the top
+half for too long, which could lead to missed interrupts.
+
+Monitoring `/proc/softirqs` is useful for:
+
+- **Performance tuning**: A high rate of softirqs could indicate a performance issue. For instance, a high
+  rate of network softirqs (`NET_RX` and `NET_TX`) could indicate a network performance issue.
+
+- **Troubleshooting**: If a system is behaving unexpectedly, checking the softirqs could provide clues about
+  what is going on. For example, a sudden increase in block device softirqs (BLOCK) might indicate a problem
+  with a disk.
+
+- **Understanding system behavior**: Knowing what types of softirqs are happening can help you understand what
+  your system is doing, particularly in terms of how it's interacting with hardware and how it's handling
+  interrupts.
+
+
+
+
+This collector is supported on all platforms.
+
+This collector supports collecting metrics from multiple instances of this integration, including remote instances.
+
+
+### 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 SoftIRQ statistics instance
+
+
+
+This scope has no labels.
+
+Metrics:
+
+| Metric | Dimensions | Unit |
+|:------|:----------|:----|
+| system.softirqs | a dimension per softirq | softirqs/s |
+
+### Per cpu core
+
+
+
+Labels:
+
+| Label      | Description     |
+|:-----------|:----------------|
+| cpu | TBD |
+
+Metrics:
+
+| Metric | Dimensions | Unit |
+|:------|:----------|:----|
+| cpu.softirqs | a dimension per softirq | softirqs/s |
+
+
+
+## Alerts
+
+There are no alerts configured by default for this integration.
+
+
+## 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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