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@@ -160,6 +160,13 @@ starpu_task::color. Colors are expressed with the following format
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<c>basic_examples/task_insert_color</c> for examples on how to assign
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colors.
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+To get statistics on the time spend in runtime overhead, one can use the
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+statistics plugin of ViTE. In Preferences, select Plugins. In "States Type",
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+select "Worker State". Then click on "Reload" to update the histogram. The red
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+"Idle" percentages are due to lack of parallelism, while the brown "Overhead"
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+and "Scheduling" percentages are due to the overhead of the runtime and of the
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+scheduler.
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+
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To identify tasks precisely, the application can also set the field
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starpu_task::tag_id or setting \ref STARPU_TAG_ONLY when calling
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starpu_task_insert(). The value of the tag will then show up in the
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