2019-06-26 11:16:51 +02:00
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# tracetools
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2019-06-26 11:18:05 +02:00
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Tracing tools for ROS 2.
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2019-06-26 11:16:51 +02:00
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## Building
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If tracing is not enabled when building, or if LTTng is not found, then this package will not do anything.
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To enable tracing:
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1. Install [LTTng](https://lttng.org/docs/v2.10/#doc-ubuntu):
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```
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$ sudo apt-get install lttng-tools lttng-modules-dkms liblttng-ust-dev
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```
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2. Build with the `WITH_LTTNG` flag:
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```
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$ colcon build --cmake-args " -DWITH_LTTNG=ON"
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```
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3. Check if tracing is enabled (after sourcing):
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```
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$ ros2 run tracetools tracetools_status
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```
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## Tracing
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By default, the steps above will not lead to trace data being generated, and thus they will have no impact on execution.
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LTTng has to be enabled: TODO mention scripts
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