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new ec1d462 Add a note to the dashboard docs about the new property
ec1d462 is described below
commit ec1d462f362a9475384db38c0bd75dfb766336d2
Author: Felix Schumacher <[email protected]>
AuthorDate: Sat Jun 5 15:21:31 2021 +0200
Add a note to the dashboard docs about the new property
Part of Bugzilla Id: 65353
---
xdocs/usermanual/generating-dashboard.xml | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/xdocs/usermanual/generating-dashboard.xml
b/xdocs/usermanual/generating-dashboard.xml
index 9a50b6b..912b925 100644
--- a/xdocs/usermanual/generating-dashboard.xml
+++ b/xdocs/usermanual/generating-dashboard.xml
@@ -241,6 +241,17 @@ jmeter.save.saveservice.timestamp_format = ms
<dd><source>${jmeter.reportgenerator.overall_granularity}</source></dd>
</dl>
</note>
+ <note>
+ <p>The calculated percentiles might differ from those
from the Aggregate Report in the GUI.
+ This is because the dashboard uses a different formula
to estimate the percentiles.
+ It will be most observable when the distribution of the
timing values is spread
+ too wide. That can happen if too few samples were
taken. If you want the numbers
+ to be more or less the same as those from the Aggregate
Report, you will have to switch the used
+ <a
href="https://commons.apache.org/proper/commons-math/javadocs/api-3.6/org/apache/commons/math3/stat/descriptive/rank/Percentile.EstimationType.html";>estimator</a>
+ from <code>LEGACY</code> to <code>R_3</code>, by
specifying the JMeter property
+ <code>backend_metrics_percentile_estimator=R_3</code>
(this time without any
+ prefix).</p>
+ </note>
</subsection>
<subsection name="§-num;.2.3 Graph settings"
anchor="configure_graph">
