Essential.Diagnostics contains additional trace listeners, filters and utility classes for the .NET Framework System.Diagnostics trace logging. Included are colored console, SQL database, rolling file, Seq logging server, and in-memory trace listeners, expression filters, activity and logical operation scopes, and configuration file monitoring.

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LTTng Scope

LTTng Scope is a trace viewer and analyzer for LTTng kernel and user space traces.

LTTng Scope supports Windows, macOS, and Linux. The source code is available under the Eclipse Public License.

Note	LTTng Scope is currently under development. There are still known bugs and some parts need to be optimized.

Installation

Binary installer

See the Beta section of the LTTng website for the latest downloadable installers for Windows, macOS, and Linux.

The installers ship with the required Java virtual machine.

Build from source

You need:

Java 8
JavaFX
Maven 3.3 or later

If you use Oracle’s JVM, which is typical on Windows and macOS, then JavaFX is already included.

If you use OpenJDK, you might need to install OpenJFX separately. On Debian and Ubuntu, you can run the following command to install the requirements:

sudo apt install openjdk-8-jre openjdk-8-jdk openjfx

To build and install LTTng Scope from source:

Clone this repository.
Run:
```
mvn clean install -DskipTests
```

When the mvn command finishes, you can start LTTng Scope:

java -jar lttng-scope-ui/target/lttng-scope-ui-*-jar-with-dependencies.jar

Relation to Trace Compass

LTTng Scope is based on some parts of the Trace Compass source code. However, it is meant to be a separate project with different design goals. While Trace Compass aims to support any analysis for any trace type, LTTng Scope aims to:

Focus on LTTng use cases.
Streamline the user experience.

Running analyses on the command line (in a CI server, for example) with text-based output is also within the realm of possibilities.

Community

Mailing list: lttng-dev ([email protected]). Preferably, use the [lttng-scope] subject prefix.
IRC: #lttng on the OFTC network.
Code contribution: Create a new GitHub pull request.
Bug reporting: Create a new GitHub issue.
Continuous integration: LTTng Scope item on LTTng’s CI.
Blog: The LTTng blog contains posts about LTTng Scope.

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lttng / lttng-scope

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