[ https://issues.apache.org/jira/browse/MESOS-9801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benjamin Mahler reassigned MESOS-9801: -------------------------------------- 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. -- This message was sent by Atlassian JIRA (v7.6.3#76005)