Dan Hecht has posted comments on this change.

Change subject: IMPALA-3332: Free local allocations in sorter.
......................................................................


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/3109/1/be/src/runtime/sorter.cc
File be/src/runtime/sorter.cc:

Line 897:  state_->batch_size()
> Maybe cache this, or just use a sensible constant like 1024? Maybe it doesn
or you could make it a count down so that it's only loaded on the unlikely path:

--comparison_count_;
if (comparison_count_ == 0) {
   ..
   comparison_count_ = state->batch_size();
}

maybe rename comparison_count_ if you do that (and even if you don't to give 
some clue it's related to FreeLocalAllocations()).


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Gerrit-MessageType: comment
Gerrit-Change-Id: Id658243d4ffa9dcdbf4e867db0bb3e8d161af086
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Michael Ho <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Matthew Jacobs <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
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