Tim Armstrong resolved IMPALA-5632.
       Resolution: Fixed
    Fix Version/s: Impala 2.12.0

IMPALA-5519 uses THP when available

> Investigate use of transparent huge pages for Bloom Filters
> -----------------------------------------------------------
>                 Key: IMPALA-5632
>                 URL: https://issues.apache.org/jira/browse/IMPALA-5632
>             Project: IMPALA
>          Issue Type: Task
>          Components: Perf Investigation
>            Reporter: Jim Apple
>            Priority: Major
>             Fix For: Impala 2.12.0
> See {{system-allocator.cc}} for some templates for using {{madvise}}. It 
> appears that TLB misses are causing performance degradation in BF lookups. 
> THPs could reduce TLB pressure when the BFs are more than 2MB.

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