The AppSignal agent collects various system metrics, which allows you to correlate performance issues and errors to abnormal host metrics. This data is available in the Host metrics section in the app overview, which allows you to inspect and compare multiple hosts. We also show a host metrics overview on the sample detail page for error and performance incidents.
For a preview of how host metrics look in the AppSignal interface, please see our host metrics tour page.
Note: This feature is available in the AppSignal for Ruby gem version
1.2 and newer. It's turned on by default since Ruby gem version
Note: This feature available in AppSignal for Elixir package version
0.10.0 and newer. It's turned on by default since Elixir package version
Note: This feature is not available on the following architectures:
- macOS/OSX (
The following host metrics are collected by the AppSignal agent for every minute on your system.
User, nice, system, idle and iowait in percentages.
Read more about CPU metrics in our academy article.
|Load average||1 minute load average on the host.|
|Memory usage||Available, free and used memory. Also includes swap total and swap used.|
|Disk usage||Percentage of every disk used.|
|Disk IO||tdroughput of data read from and written to every disk.|
|Network traffic||Throughput of data received and transmitted through every network interface.|
To use host metrics on Heroku, head to the Heroku host metrics page.
To use host metrics on (Docker) containers, head to the container host metrics page.