-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/54106/
-----------------------------------------------------------
(Updated Nov. 28, 2016, 7:22 p.m.)
Review request for Aurora, David McLaughlin, Joshua Cohen, and Santhosh Kumar
Shanmugham.
Changes
-------
I had two commits related to different issues mixed up. I decoupled them.
Summary (updated)
-----------------
SlaUtil::percentile percentiles interpolation
Repository: aurora
Description
-------
__Modification to SlaUtil::percentile to compute percentiles by interpolation__
The calculation of mttX (median-time-to-X) depends on the computation of
percentile values. The current implementation does not behave nicely with a
small sample size. For instance, for a given sample set of {50, 150},
50-percentile is reported to be 50. Although, 100 seems a more appropriate
return value.
This patch uses Guava's Quantile for interpolation.
Diffs (updated)
-----
src/main/java/org/apache/aurora/scheduler/sla/SlaAlgorithm.java
263647e802b664fd3ea21cef8109fb7a9252356f
src/main/java/org/apache/aurora/scheduler/sla/SlaUtil.java
156b9c0a2fa0c0ec4b7220d5ec2cc40c3e59d1d6
src/test/java/org/apache/aurora/scheduler/sla/SlaAlgorithmTest.java
eca1beebc906d3354d8c294ba466bc904bde98fa
Diff: https://reviews.apache.org/r/54106/diff/
Testing
-------
Tests added and modified to match the continuous distribution.
I also exported the tests into excel and check the reports percentiles.
Thanks,
Reza Motamedi
