TestEngineering/Performance/Talos/Data: Difference between revisions

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Data Points refer to the single numbers or replicates we collect while executing a talos test.  In this regard, we collect a series of numbers (usually 20 or more) for each subtest.  Each of these 20+ numbers are called data points.
Data Points refer to the single numbers or replicates we collect while executing a talos test.  In this regard, we collect a series of numbers (usually 20 or more) for each subtest.  Each of these 20+ numbers are called data points.


We do filtering on the data points, mainly because the first few data points are not a representative sample of the remaining data points we collect.  The one exception would be [[../Tests#Internal_Benchmarks]] (generally suites which measure something other than time). For Benchmarks, there is usually a special formula applied to the data points.
We do filtering on the data points, mainly because the first few data points are not a representative sample of the remaining data points we collect.  The one exception would be [https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#benchmarks benchmarks] (generally suites which measure something other than time). For benchmarks, there is usually a special formula applied to the data points.


= Subtest filters =
= Subtest filters =
We have a variety of [https://dxr.mozilla.org/mozilla-central/source/testing/talos/talos/filter.py filters] defined for Talos.  I will explain what each filter is, and you can see the exact settings used for each filter by looking at the individual [[../Tests|tests]].
We have a variety of [https://dxr.mozilla.org/mozilla-central/source/testing/talos/talos/filter.py filters] defined for Talos.  I will explain what each filter is, and you can see the exact settings used for each filter by looking at the individual [https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#test-definitions tests].


== ignore_first ==
== ignore_first ==
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