Csaba Ringhofer has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/13807 )

Change subject: IMPALA-8741: Speed up bit unpacking by vectorisation
......................................................................


Patch Set 4:

(3 comments)

http://gerrit.cloudera.org:8080/#/c/13807/15/be/src/benchmarks/bit-packing-benchmark.cc
File be/src/benchmarks/bit-packing-benchmark.cc:

http://gerrit.cloudera.org:8080/#/c/13807/15/be/src/benchmarks/bit-packing-benchmark.cc@744
PS15, Line 744:
              :
Is this intentional?


http://gerrit.cloudera.org:8080/#/c/13807/4/be/src/util/bit-packing-vectorized.h
File be/src/util/bit-packing-vectorized.h:

PS4:
> That is ok by me
Yes, I prefer committing the generated file in this case. I can imagine a 
situation where having the generated file in github can save someone a few 
minutes of working, e.g. in case of stacktrace pointing there. I am not afraid 
of bit rot in this case, as the generator is very self contained.

Unrelated: I would prefer to add "generated" or something similar to the file's 
name.


http://gerrit.cloudera.org:8080/#/c/13807/15/be/src/util/bit-packing.h
File be/src/util/bit-packing.h:

http://gerrit.cloudera.org:8080/#/c/13807/15/be/src/util/bit-packing.h@63
PS15, Line 63: ue,
nit: "the" not needed



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I9e452a547973778bbd8d768c608e1a32e948f947
Gerrit-Change-Number: 13807
Gerrit-PatchSet: 4
Gerrit-Owner: Daniel Becker <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Daniel Becker <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Comment-Date: Wed, 24 Jul 2019 13:59:27 +0000
Gerrit-HasComments: Yes

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