New Relic's .NET agent supports both .NET Framework and .NET Core. This document describes compatibility and support for .NET Core applications. See Compatibility and requirements for .NET Framework for .NET Framework applications.
New Relic's .NET agent includes built-in instrumentation for some of the most popular parts of the .NET Core ecosystem, including frameworks, databases, and message queuing systems.
After installation, the agent runs within the monitored process; there is not a separate process or service created by the agent.
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If your application is hosted in ASP.NET Core, the agent automatically creates and instruments transactions. The .NET agent will automatically instrument your application after install. If your app is not automatically instrumented, or if you want to add instrumentation, use custom instrumentation.
The following features are not available for the .NET agent:
- Memory usage on Linux due to an ongoing .NET Core issue (try using .NET performance metrics to get this information)
- Automatic brower monitoring script injection (API or manual instrumentation is required)
- The .NET agent does not support trim self-contained deployments and executables, because the compiler can potentially trim assemblies that the agent depends on.
- Infinite Tracing is not supported on Alpine Linux due to a GRPC compatibility issue. See this agent issue for more information.
In addition to APM, the .NET agent integrates with other New Relic products to give you end-to-end visibility:
After enabling browser injection, you can view browser data in the APM Summary page and quickly switch between the APM and browser data for a particular app. For configuration options and manual instrumentation, see browser monitoring and the .NET agent.
When you install the Infrastructure and APM agents on the same host, they automatically detect one another. You can then view a list of hosts in the APM UI, and filter your Infrastructure hosts by APM app in the Infrastructure UI. For more information, see APM data in Infrastructure.