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From "Tim Armstrong (Code Review)" <ger...@cloudera.org>
Subject [Impala-CR](cdh5-trunk) IMPALA-3286: prefetching for PartitionedAggregationNode
Date Mon, 16 May 2016 16:36:37 GMT
Tim Armstrong has posted comments on this change.

Change subject: IMPALA-3286: prefetching for PartitionedAggregationNode
......................................................................


Patch Set 5:

I also observed that if I turn off prefetching, most of the regression on low-ndv aggs seems
to go away.

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Gerrit-MessageType: comment
Gerrit-Change-Id: I7726454efb416d61080c4e11db0ee7ada18c149b
Gerrit-PatchSet: 5
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Tim Armstrong <tarmstrong@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dhecht@cloudera.com>
Gerrit-Reviewer: Michael Ho <kwho@cloudera.com>
Gerrit-Reviewer: Mostafa Mokhtar <mmokhtar@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstrong@cloudera.com>
Gerrit-HasComments: No

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