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https://issues.apache.org/jira/browse/SAMZA-1331?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fred Ji updated SAMZA-1331:
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Fix Version/s: (was: 0.13.1)
0.13.0
> Optimize Snapshot class constructor
> -----------------------------------
>
> Key: SAMZA-1331
> URL: https://issues.apache.org/jira/browse/SAMZA-1331
> Project: Samza
> Issue Type: Improvement
> Reporter: Maksim Logvinenko
> Assignee: Maksim Logvinenko
> Fix For: 0.13.0
>
>
> In some of our workloads (where we need to gather samza metrics five times
> per minute) `SlidingTimeWindowReservoir.getSnapshot()` method takes up to 10%
> of processor time.
> Almost all of `getSnapshot` time is taken by Collections.sort method. So, the
> complexity of Snapshot constructor is O(NlogN) + iteration through passed
> values.
> This ticket asks to improve the performance of Snapshot constructor but keep
> the performance of all other methods at least on the same level.
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