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Diffstat (limited to 'docs/report/introduction/methodology_trending/trend_analysis.rst')
| -rw-r--r-- | docs/report/introduction/methodology_trending/trend_analysis.rst | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/docs/report/introduction/methodology_trending/trend_analysis.rst b/docs/report/introduction/methodology_trending/trend_analysis.rst index 2bb54997b0..20ad46405a 100644 --- a/docs/report/introduction/methodology_trending/trend_analysis.rst +++ b/docs/report/introduction/methodology_trending/trend_analysis.rst @@ -22,7 +22,7 @@ Implementation details ~~~~~~~~~~~~~~~~~~~~~~ Partitioning into groups ------------------------- +```````````````````````` While sometimes the samples within a group are far from being distributed normally, currently we do not have a better tractable model. @@ -39,7 +39,7 @@ results). The group boundaries are selected based on `Minimum Description Length`_. Minimum Description Length --------------------------- +`````````````````````````` `Minimum Description Length`_ (MDL) is a particular formalization of `Occam's razor`_ principle. @@ -103,7 +103,7 @@ We are going to describe the behaviors, as they motivate our choice of trend compliance metrics. Sample time and analysis time ------------------------------ +````````````````````````````` But first we need to distinguish two roles time plays in analysis, so it is more clear which role we are referring to. @@ -132,7 +132,7 @@ so the values reported there are likely to be different from the later analysis time results shown in dashboard and graphs. Ordinary regression -------------------- +``````````````````` The real performance changes from previously stable value into a new stable value. @@ -143,7 +143,7 @@ is enough for anomaly detection to mark this regression. Ordinary progressions are detected in the same way. Small regression ----------------- +```````````````` The real performance changes from previously stable value into a new stable value, but the difference is small. @@ -162,7 +162,7 @@ is still not enough for the detection). Small progressions have the same behavior. Reverted regression -------------------- +``````````````````` This pattern can have two different causes. We would like to distinguish them, but that is usually @@ -196,7 +196,7 @@ to increase performance, the opposite (temporary progression) almost never happens. Summary -------- +``````` There is a trade-off between detecting small regressions and not reporting the same old regressions for a long time. |