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https://issues.apache.org/jira/browse/MESOS-9801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Mahler reassigned MESOS-9801:
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Assignee: William Mahler
> Use protobuf arenas for v1 API responses.
> -----------------------------------------
>
> Key: MESOS-9801
> URL: https://issues.apache.org/jira/browse/MESOS-9801
> Project: Mesos
> Issue Type: Improvement
> Components: agent, master
> Reporter: Benjamin Mahler
> Assignee: William Mahler
> Priority: Major
> Labels: performance
>
> The v1 API response construction is currently slower than the v0 API response
> construction. A primary reason for this is that the v1 API constructs
> intermediate C++ protobuf response objects, which are very expensive in terms
> of memory allocation/deallocation cost. Also involved is the use of
> {{evolve()}} which evolves messages from unversioned protobuf into v1
> protobuf. This also has very high memory allocation / deallocation cost.
> Using arenas for all v1 API response construction will provide a significant
> improvement.
> This ticket currently captures all the aspects of this:
> * Updating {{evolve()}} to use arenas across all v1 API responses.
> * Updating all response construction functions (e.g. {{getState())}}) to use
> arenas.
> * Making this change for both the master and agent.
> This is blocked by MESOS-9755 since we need to upgrade our bundled protobuf
> to have string fields allocated in the arenas.
> We may split out tickets for CHANGELOG purposes if only a portion of this
> lands in 1.9.0.
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