Zoltan Borok-Nagy has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17389 )

Change subject: IMPALA-10680: Replace StringToFloatInternal using 
fast_double_parser library
......................................................................


Patch Set 6:

I think it would be nice to see a comparision between fast_double_parser and 
strtod() for short strings.

If we can measure a significant benefit for fast_double_parser we can use it 
for short strings with a VLA, and use strtod() for long strings with heap 
allocation (in this case we don't need to preprocess the string).

If we can't measure a difference between the two then maybe we should just use 
strtod() since it's more robust and doesn't need any preprocessing of the input.


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ic105ad38a2fcbf2fb4e8ae8af6d9a8e251a9c141
Gerrit-Change-Number: 17389
Gerrit-PatchSet: 6
Gerrit-Owner: Amogh Margoor <[email protected]>
Gerrit-Reviewer: Amogh Margoor <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Qifan Chen <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>
Gerrit-Comment-Date: Thu, 27 May 2021 10:31:49 +0000
Gerrit-HasComments: No

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