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diff --git a/collectors/proc.plugin/integrations/pressure_stall_information.md b/collectors/proc.plugin/integrations/pressure_stall_information.md deleted file mode 100644 index 53f4aa050..000000000 --- a/collectors/proc.plugin/integrations/pressure_stall_information.md +++ /dev/null @@ -1,129 +0,0 @@ -<!--startmeta -custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/integrations/pressure_stall_information.md" -meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/metadata.yaml" -sidebar_label: "Pressure Stall Information" -learn_status: "Published" -learn_rel_path: "Data Collection/Linux Systems/Pressure" -most_popular: False -message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE" -endmeta--> - -# Pressure Stall Information - - -<img src="https://netdata.cloud/img/linuxserver.svg" width="150"/> - - -Plugin: proc.plugin -Module: /proc/pressure - -<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" /> - -## Overview - -Introduced in Linux kernel 4.20, `/proc/pressure` provides information about system pressure stall information -(PSI). PSI is a feature that allows the system to track the amount of time the system is stalled due to -resource contention, such as CPU, memory, or I/O. - -The collectors monitored 3 separate files for CPU, memory, and I/O: - -- **cpu**: Tracks the amount of time tasks are stalled due to CPU contention. -- **memory**: Tracks the amount of time tasks are stalled due to memory contention. -- **io**: Tracks the amount of time tasks are stalled due to I/O contention. -- **irq**: Tracks the amount of time tasks are stalled due to IRQ contention. - -Each of them provides metrics for stall time over the last 10 seconds, 1 minute, 5 minutes, and 15 minutes. - -Monitoring the /proc/pressure files can provide important insights into system performance and capacity planning: - -- **Identifying resource contention**: If these metrics are consistently high, it indicates that tasks are - frequently being stalled due to lack of resources, which can significantly degrade system performance. - -- **Troubleshooting performance issues**: If a system is experiencing performance issues, these metrics can - help identify whether resource contention is the cause. - -- **Capacity planning**: By monitoring these metrics over time, you can understand trends in resource - utilization and make informed decisions about when to add more resources to your system. - - - - -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 Pressure Stall Information instance - - - -This scope has no labels. - -Metrics: - -| Metric | Dimensions | Unit | -|:------|:----------|:----| -| system.cpu_some_pressure | some10, some60, some300 | percentage | -| system.cpu_some_pressure_stall_time | time | ms | -| system.cpu_full_pressure | some10, some60, some300 | percentage | -| system.cpu_full_pressure_stall_time | time | ms | -| system.memory_some_pressure | some10, some60, some300 | percentage | -| system.memory_some_pressure_stall_time | time | ms | -| system.memory_full_pressure | some10, some60, some300 | percentage | -| system.memory_full_pressure_stall_time | time | ms | -| system.io_some_pressure | some10, some60, some300 | percentage | -| system.io_some_pressure_stall_time | time | ms | -| system.io_full_pressure | some10, some60, some300 | percentage | -| system.io_full_pressure_stall_time | time | ms | - - - -## 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. - - |