[Impala-ASF-CR] IMPALA-5164: Better benchmark heuristic

["Lars Volker (Code Review)" <ge...@cloudera.org>]

Lars Volker has posted comments on this change.

Change subject: IMPALA-5164: Better benchmark heuristic
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Patch Set 2:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/7389/2/be/src/util/benchmark.cc
File be/src/util/benchmark.cc:

Line 39: // is detecting context switches using getrusage().  Pass micro_heuristics=false to
Can you add a sentence here to explain how that method helps to determine a run to be unreliable?


PS2, Line 65: hopefully
What if they don't? Will this loop run forever then?


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ie6fb1283716dbc591c10238d85b9ab436d02fb96
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Zach Amsden <za...@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dh...@cloudera.com>
Gerrit-Reviewer: Jim Apple <jb...@apache.org>
Gerrit-Reviewer: Lars Volker <lv...@cloudera.com>
Gerrit-Reviewer: Zach Amsden <za...@cloudera.com>
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