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3rdparty/libprocess/include/process/statistics.hpp
<https://reviews.apache.org/r/13603/#comment50302>

    note for myself:
    
    I should update the default window size in process.cpp now that this adds 
sparsification.


- Ben Mahler


On Aug. 15, 2013, 10:13 p.m., Ben Mahler wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/13603/
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> 
> (Updated Aug. 15, 2013, 10:13 p.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Vinod Kone.
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> The first part of this change is the removal of the archive operation.
> 
> This also exposes a TimeSeries data structure used by Statistics.
> 
> The goal here is to provide reasonable historical information for high 
> frequency time series that rapidly exceed capacity.
> TimeSeries allows a window of values to be stored, while "sparsifying" older 
> values when the capacity is exceeded.
> See the documentation on TimeSeries for details.
> 
> An alternative, more deterministic approach, is to use sampling on older 
> values.
> Both approaches have their advantages and disadvantages.
> 
> 
> Diffs
> -----
> 
>   3rdparty/libprocess/include/process/statistics.hpp 
> fbae64153b4fc53cfba8c74c0a016184bcd4e188 
>   3rdparty/libprocess/src/statistics.cpp 
> d4ba9f146f7b9b46525a0e27fbfb3d61a21a94fc 
>   3rdparty/libprocess/src/tests/statistics_tests.cpp 
> 8695f4599a55c78c7c6490a45d25fcab38fb31af 
> 
> Diff: https://reviews.apache.org/r/13603/diff/
> 
> 
> Testing
> -------
> 
> Added tests to verify the truncation and sparsification of time series.
> 
> 
> Thanks,
> 
> Ben Mahler
> 
>

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