Zoltan Borok-Nagy has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/18215 )

Change subject: IMPALA-11113 and IMPALA-11114: fixed single_node_perf_run.py 
for TPCDS
......................................................................

IMPALA-11113 and IMPALA-11114: fixed single_node_perf_run.py for TPCDS

Fixed the UTF-8 UnicodeDecodeError which was thrown while dumping and
loading the json file. Now the script ignores non-decodable characters.

Fixed the ZeroDevisionError coming from t-test when the standard
deviations were 0. "(N/A) Invalid t-test type" is shown for significant
changes and a hint at the end if any invalid t-test was detected.

Change-Id: I094763188a1f3ddf40b7140c65acf95918a6597f
Reviewed-on: http://gerrit.cloudera.org:8080/18215
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
Reviewed-by: Quanlong Huang <[email protected]>
---
M bin/run-workload.py
M bin/single_node_perf_run.py
M tests/benchmark/report_benchmark_results.py
3 files changed, 18 insertions(+), 6 deletions(-)

Approvals:
  Impala Public Jenkins: Looks good to me, approved; Verified
  Quanlong Huang: Looks good to me, approved

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I094763188a1f3ddf40b7140c65acf95918a6597f
Gerrit-Change-Number: 18215
Gerrit-PatchSet: 5
Gerrit-Owner: Gergely Fürnstáhl <[email protected]>
Gerrit-Reviewer: Gergely Fürnstáhl <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>

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