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Add 'Introduced in Catch 2.9.0.' text
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<a id="top"></a>
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# Authoring benchmarks
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> [Introduced](https://github.com/catchorg/Catch2/issues/1616) in Catch 2.9.0.
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_Note that benchmarking support is disabled by default and to enable it,
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you need to define `CATCH_CONFIG_ENABLE_BENCHMARKING`. For more details,
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see the [compile-time configuration documentation](configuration.md#top)._
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@ -277,6 +277,8 @@ either before running any tests, after running all tests - or both, depending on
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## Specify the number of benchmark samples to collect
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<pre>--benchmark-samples <# of samples></pre>
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> [Introduced](https://github.com/catchorg/Catch2/issues/1616) in Catch 2.9.0.
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When running benchmarks a number of "samples" is collected. This is the base data for later statistical analysis.
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Per sample a clock resolution dependent number of iterations of the user code is run, which is independent of the number of samples. Defaults to 100.
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@ -284,6 +286,8 @@ Per sample a clock resolution dependent number of iterations of the user code is
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## Specify the number of resamples for bootstrapping
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<pre>--benchmark-resamples <# of resamples></pre>
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> [Introduced](https://github.com/catchorg/Catch2/issues/1616) in Catch 2.9.0.
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After the measurements are performed, statistical [bootstrapping] is performed
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on the samples. The number of resamples for that bootstrapping is configurable
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but defaults to 100000. Due to the bootstrapping it is possible to give
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@ -297,6 +301,8 @@ defaults to 95%).
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## Specify the confidence-interval for bootstrapping
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<pre>--benchmark-confidence-interval <confidence-interval></pre>
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> [Introduced](https://github.com/catchorg/Catch2/issues/1616) in Catch 2.9.0.
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The confidence-interval is used for statistical bootstrapping on the samples to
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calculate the upper and lower bounds of mean and standard deviation.
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Must be between 0 and 1 and defaults to 0.95.
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@ -305,6 +311,8 @@ Must be between 0 and 1 and defaults to 0.95.
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## Disable statistical analysis of collected benchmark samples
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<pre>--benchmark-no-analysis</pre>
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> [Introduced](https://github.com/catchorg/Catch2/issues/1616) in Catch 2.9.0.
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When this flag is specified no bootstrapping or any other statistical analysis is performed.
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Instead the user code is only measured and the plain mean from the samples is reported.
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@ -194,6 +194,8 @@ is very high and should not be encountered in practice._
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* **TEMPLATE_LIST_TEST_CASE(** _test name_, _tags_, _type list_ **)**
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> [Introduced](https://github.com/catchorg/Catch2/issues/1627) in Catch 2.9.0.
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_type list_ is a generic list of types on which test case should be instantiated.
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List can be `std::tuple`, `boost::mpl::list`, `boost::mp11::mp_list` or anything with
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`template <typename...>` signature.
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