Merging upstream version 1.43.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 168 insertions, 0 deletions

diff --git a/collectors/proc.plugin/integrations/system_statistics.md b/collectors/proc.plugin/integrations/system_statistics.md
new file mode 100644
index 000000000..2932dd8d2
--- /dev/null
+++ b/collectors/proc.plugin/integrations/system_statistics.md
@@ -0,0 +1,168 @@
+<!--startmeta
+custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/integrations/system_statistics.md"
+meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/metadata.yaml"
+sidebar_label: "System statistics"
+learn_status: "Published"
+learn_rel_path: "Data Collection/Linux Systems/System"
+message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE"
+endmeta-->
+
+# System statistics
+
+
+<img src="https://netdata.cloud/img/linuxserver.svg" width="150"/>
+
+
+Plugin: proc.plugin
+Module: /proc/stat
+
+<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
+
+## Overview
+
+CPU utilization, states and frequencies and key Linux system performance metrics.
+
+The `/proc/stat` file provides various types of system statistics:
+
+- The overall system CPU usage statistics
+- Per CPU core statistics
+- The total context switching of the system
+- The total number of processes running
+- The total CPU interrupts
+- The total CPU softirqs
+
+The collector also reads:
+
+- `/proc/schedstat` for statistics about the process scheduler in the Linux kernel.
+- `/sys/devices/system/cpu/[X]/thermal_throttle/core_throttle_count` to get the count of thermal throttling events for a specific CPU core on Linux systems.
+- `/sys/devices/system/cpu/[X]/thermal_throttle/package_throttle_count` to get the count of thermal throttling events for a specific CPU package on a Linux system.
+- `/sys/devices/system/cpu/[X]/cpufreq/scaling_cur_freq` to get the current operating frequency of a specific CPU core.
+- `/sys/devices/system/cpu/[X]/cpufreq/stats/time_in_state` to get the amount of time the CPU has spent in each of its available frequency states.
+- `/sys/devices/system/cpu/[X]/cpuidle/state[X]/name` to get the names of the idle states for each CPU core in a Linux system.
+- `/sys/devices/system/cpu/[X]/cpuidle/state[X]/time` to get the total time each specific CPU core has spent in each idle state since the system was started.
+
+
+
+
+This collector is only supported on the following platforms:
+
+- linux
+
+This collector only supports collecting metrics from a single instance of this integration.
+
+
+### Default Behavior
+
+#### Auto-Detection
+
+The collector auto-detects all metrics. No configuration is needed.
+
+
+#### Limits
+
+The default configuration for this integration does not impose any limits on data collection.
+
+#### Performance Impact
+
+The collector disables cpu frequency and idle state monitoring when there are more than 128 CPU cores available.
+
+
+
+## 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 statistics instance
+
+
+
+This scope has no labels.
+
+Metrics:
+
+| Metric | Dimensions | Unit |
+|:------|:----------|:----|
+| system.cpu | guest_nice, guest, steal, softirq, irq, user, system, nice, iowait, idle | percentage |
+| system.intr | interrupts | interrupts/s |
+| system.ctxt | switches | context switches/s |
+| system.forks | started | processes/s |
+| system.processes | running, blocked | processes |
+| cpu.core_throttling | a dimension per cpu core | events/s |
+| cpu.package_throttling | a dimension per package | events/s |
+| cpu.cpufreq | a dimension per cpu core | MHz |
+
+### Per cpu core
+
+
+
+Labels:
+
+| Label      | Description     |
+|:-----------|:----------------|
+| cpu | TBD |
+
+Metrics:
+
+| Metric | Dimensions | Unit |
+|:------|:----------|:----|
+| cpu.cpu | guest_nice, guest, steal, softirq, irq, user, system, nice, iowait, idle | percentage |
+| cpuidle.cpu_cstate_residency_time | a dimension per c-state | percentage |
+
+
+
+## Alerts
+
+
+The following alerts are available:
+
+| Alert name  | On metric | Description |
+|:------------|:----------|:------------|
+| [ 10min_cpu_usage ](https://github.com/netdata/netdata/blob/master/health/health.d/cpu.conf) | system.cpu | average CPU utilization over the last 10 minutes (excluding iowait, nice and steal) |
+| [ 10min_cpu_iowait ](https://github.com/netdata/netdata/blob/master/health/health.d/cpu.conf) | system.cpu | average CPU iowait time over the last 10 minutes |
+| [ 20min_steal_cpu ](https://github.com/netdata/netdata/blob/master/health/health.d/cpu.conf) | system.cpu | average CPU steal time over the last 20 minutes |
+
+
+## Setup
+
+### Prerequisites
+
+No action required.
+
+### Configuration
+
+#### File
+
+The configuration file name for this integration is `netdata.conf`.
+Configuration for this specific integration is located in the `plugin:proc:/proc/stat` section within that file.
+
+The file format is a modified INI syntax. The general structure is:
+
+```ini
+[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](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory).
+
+```bash
+cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
+sudo ./edit-config netdata.conf
+```
+#### Options
+
+
+
+There are no configuration options.
+
+#### Examples
+There are no configuration examples.
+
+