Gopal V created HIVE-17994:
------------------------------
Summary: Vectorization: Serialization bottlenecked on irrelevant
hashmap lookup
Key: HIVE-17994
URL: https://issues.apache.org/jira/browse/HIVE-17994
Project: Hive
Issue Type: Bug
Reporter: Gopal V
On machines with slower NUMA, the hashmap lookup for
TypeInfo::getPrimitiveCategory is the slowest part of the vectorized
serialization loops. The static object references run hot with the NUMA access
speeds penalizing half the threads.
!vec-serialize-hashmap.png!
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
