Bug 62883 - Report / Dashboard : Change the way percentiles are computed for Response Time Percentiles Over Time (successful responses) graph
Summary: Report / Dashboard : Change the way percentiles are computed for Response Tim...
Status: RESOLVED FIXED
Alias: None
Product: JMeter
Classification: Unclassified
Component: Main (show other bugs)
Version: 5.0
Hardware: All All
: P2 enhancement (vote)
Target Milestone: JMETER_5.1
Assignee: JMeter issues mailing list
URL:
Keywords: FixedInTrunk
Depends on:
Blocks:
 
Reported: 2018-11-04 13:43 UTC by Philippe Mouawad
Modified: 2018-11-04 13:50 UTC (History)
1 user (show)



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Description Philippe Mouawad 2018-11-04 13:43:25 UTC
As per discussion on mailing list:

- http://mail-archives.apache.org/mod_mbox/jmeter-dev/201811.mbox/%3CCAH9fUpafHR9kYanVRP2iJ7wyKEDOFYUrBPi9gBOZ%3DdFyeemDZw%40mail.gmail.com%3E

In summary:

Currently when we compute percentiles for this graph, for each time slot of a granularity we start the percentile computing from previous slot data:
https://github.com/apache/jmeter/blob/trunk/src/core/org/apache/jmeter/report/processor/PercentileAggregator.java#L53

Which leads to such result:

    https://ibb.co/mT22YL

This is weird because Max should be higher than Percentile

If we start for each time slot from blank:

    https://ibb.co/nJiWSf
Comment 1 Philippe Mouawad 2018-11-04 13:50:52 UTC
Author: pmouawad
Date: Sun Nov  4 13:49:37 2018
New Revision: 1845737

URL: http://svn.apache.org/viewvc?rev=1845737&view=rev
Log:
Bug 62883 - Report / Dashboard : Change the way percentiles are computed for Response Time Percentiles Over Time (successful responses) graph
Bugzilla Id: 62883

Modified:
    jmeter/trunk/src/core/org/apache/jmeter/report/processor/PercentileAggregator.java
    jmeter/trunk/xdocs/changes.xml