![]() On Linux and macOS, this command expects the target application and dotnet-trace to share the same TMPDIR environment variable.The runtime needs to send over the type cache for all managed code that was captured in the trace. Stopping the trace may take a long time (up to minutes) for large applications.This may be helpful when diagnosing issues that happen early in the process, such as startup performance issue or assembly loader and binder errors. NET application with at least a 5.0 runtime. NET 5 or later)Īfter the collection configuration parameters, the user can append - followed by a command to start a. NET, refer to Well-known Event Providers. To learn more about some of the well-known providers in. Provider is in the form: KnownProviderName].If there's any inconsistency for a particular provider, this configuration takes precedence over the implicit configuration from the profile. ![]() These providers supplement any providers implied by -profile. Tracks GC collections only at very low overhead.Ī comma-separated list of EventPipe providers to be enabled. Tracks GC collections and samples object allocations. This is the default option if no profile or providers are specified. Useful for tracking CPU usage and general. The process ID to collect the trace from.Ī named pre-defined set of provider configurations that allows common tracing scenarios to be specified succinctly. The output path for the collected trace data. For example 00:00:00:05 will run it for 5 seconds. See Use diagnostic port to collect a trace from app startup to learn how to use this option to collect a trace from app startup. The name of the diagnostic port to create. The name of the process to collect the trace from. Sets the output format for the trace file conversion. NET runtime provider reference documentation. You can read about the CLR provider more in detail on the. The table below shows the list of available keywords: Keyword String Alias ![]() For example, dotnet-trace collect -providers Microsoft-Windows-DotNETRuntime:3:4 requests the same set of events as dotnet-trace collect -clrevents gc+gchandle -clreventlevel informational. This is a simple mapping that lets you specify event keywords via string aliases rather than their hex values. You can mitigate this problem by increasing the buffer size or reducing the number of events being recorded.Ī list of CLR runtime provider keywords to enable separated by + signs. If the target process emits events faster than they can be written to disk, this buffer may overflow and some events will be dropped. Sets the size of the in-memory buffer, in megabytes. To have the tool run a child process and trace it from its startup, append - to the collect command. duration 00:00:00:05 will run it for 5 seconds.Ĭollects a diagnostic trace from a running process or launches a child process and traces it (.NET 5 or later). Delivers the same experience on Windows, Linux, or macOS.ĭisplays the version of the dotnet-trace utility.NET Core traces of a running process without a native profiler. To use dotnet-trace on an x86 app, you need a corresponding x86 version of the tool.
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