You are viewing a plain text version of this content. The canonical link for it is here.

Posted to notifications@iotdb.apache.org by "Steve Yurong Su (Jira)" <ji...@apache.org> on 2021/01/18 04:49:00 UTC

[jira] [Created] (IOTDB-1113) Optimize the execution efficiency of UDF

Steve Yurong Su created IOTDB-1113:
--------------------------------------

             Summary: Optimize the execution efficiency of UDF
                 Key: IOTDB-1113
                 URL: https://issues.apache.org/jira/browse/IOTDB-1113
             Project: Apache IoTDB
          Issue Type: Sub-task
          Components: Core/Engine
            Reporter: Steve Yurong Su
             Fix For: 0.12.0


There are several points that can be optimized:

1. Avoid Java boxing / unboxing in LRUCache and SafetyLine

2. Avoid unnecessary memory copy in SerializableRowReordList

3. Memory control:

  3.1 Disable memory control when there are no text fields

  3.2 Stricter eviction upper bound

4. Use lighter data structures: RowRecord -> Object[] 



--
This message was sent by Atlassian Jira
(v8.3.4#803005)