Jim Apple has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/11194


Change subject: IMPALA-7426: Use Mann-Whitney U to compare benchmarks
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IMPALA-7426: Use Mann-Whitney U to compare benchmarks

The Mann-Whitney test can be used to compare samples taken from
non-normal distributions, and so can more accurately reflect
performance changes than a T-test. This patch does not remove t-tests
from the benchmark reporting, it just supplements them by including
the Mann-Whitney test result as well.

Change-Id: I8d6631ebeba1422b832def5cd68537624f672fa0
---
M tests/benchmark/report_benchmark_results.py
M tests/util/calculation_util.py
2 files changed, 75 insertions(+), 33 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/94/11194/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I8d6631ebeba1422b832def5cd68537624f672fa0
Gerrit-Change-Number: 11194
Gerrit-PatchSet: 1
Gerrit-Owner: Jim Apple <jbapple-imp...@apache.org>

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