Show deviation in _GetStatistics output

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#311 Show deviation in _GetStatistics output

Status: open

Owner: Anthony Goubard

Labels: XINS/Java Server Framework (80)

Priority: 6

Updated: 2010-04-08

Created: 2010-02-10

Creator: Ernst de Haan

Private: No

Currently, _GetStatistics shows the min, max and avg performance for calls. In out environment, that information is not enough, the deviation is also needed.

Standard deviation would be best to have.

Additionally it would be nice to also have stats for 90%--thresholds. Meaning that if the threshold value is 55 ms, then 90% of the requests is handled within 55 ms.

Discussion

Ernst de Haan - 2010-02-11

assigned_to: nobody --> znerd

priority: 5 --> 7
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Ernst de Haan - 2010-02-15

I propose reducing the scope of this RFE to: outputting the variance only, in a parameter "variance". I have developed the code, along with some unit tests.

Assigning to Anthony for his review.

I intend to deliver a patch ASAP.

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Ernst de Haan - 2010-02-15

assigned_to: znerd --> agoubard
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Ernst de Haan - 2010-02-15

Proposed patch for both this RFE and for RFE #2949858.

2949333_and_2949858.diff

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Ernst de Haan - 2010-02-15

Note that the proposed patch also (a) implements RFE #2949858 (b) does a bit of Javadoc and code cleanup.

I will also add the VarianceComputer and the VarianceComputerTests classes. Note that the VarianceComputerTests should also be linked from AllTests.java.

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Ernst de Haan - 2010-02-15

VarianceComputer class, in package org.xins.common.

VarianceComputer.java

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Ernst de Haan - 2010-02-15

VarianceComputerTests class, in package org.xins.tests.common.

VarianceComputerTests.java

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Anthony Goubard - 2010-02-18

priority: 7 --> 4

assigned_to: agoubard --> nobody
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Ernst de Haan - 2010-02-22

FunctionStatistics.java - result of 2949333_and_2949858.diff

FunctionStatistics.java

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Ernst de Haan - 2010-04-08

@Anthony: Is this included in XINS 2.3-beta1 or did you take it out of the proposed implementation?

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Ernst de Haan - 2010-04-08

priority: 4 --> 6

assigned_to: nobody --> agoubard
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