Benjamin Mahler created MESOS-9948:
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Summary: master::Slave::hasExecutor occupies 37% of a 150 second
perf sample from a user.
Key: MESOS-9948
URL: https://issues.apache.org/jira/browse/MESOS-9948
Project: Mesos
Issue Type: Improvement
Components: master
Reporter: Benjamin Mahler
Attachments: long-fei-enable-debug-slow-master.gz
If you drop the attached perf stacks into flamescope, you can see that
mesos::internal::master::Slave::hasExecutor occupies 37% of the overall samples!
This function does 3 hashmap lookups, 1 can be eliminated for a quick win.
However, the larger improvement here will come from eliminating many of the
calls to this function.
This was reported by [~carlone].
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