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Introduce faster approximate sinh/atan math functions #49009

Merged
merged 3 commits into from
Nov 14, 2019
Merged

Introduce faster approximate sinh/atan math functions #49009

merged 3 commits into from
Nov 14, 2019

Commits on Nov 12, 2019

  1. Introduce faster approximate sinh/atan functions 

    This commit introduces a new class called ESSloppyMath
that is meant to reflect the purpose of Lucene's SloppyMath,
but add additional unimplemented faster alternatives to math functions.

The two that are used by geotile-grid a lot are sinh/atan.

In a quick elasticsearch rally benchmark for geotile-grid on Switzerland
data points, this shows a (1.22x) 22% speed-up over using Math's functions.

closes elastic#41166.
    @talevy
    talevy committed Nov 12, 2019
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  2. add license header to tests

    @talevy
    talevy committed Nov 12, 2019
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Commits on Nov 14, 2019

  1. Merge branch 'master' into essloppymath

    @elasticmachine
    elasticmachine committed Nov 14, 2019
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