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Posted to notifications@iotdb.apache.org by "Tian Jiang (Jira)" <ji...@apache.org> on 2023/07/12 08:21:00 UTC

[jira] [Created] (IOTDB-6060) TVList in Tablets

Tian Jiang created IOTDB-6060:
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             Summary: TVList in Tablets
                 Key: IOTDB-6060
                 URL: https://issues.apache.org/jira/browse/IOTDB-6060
             Project: Apache IoTDB
          Issue Type: Improvement
          Components: Core/Engine
            Reporter: Tian Jiang
             Fix For: master branch


In recent experiments, I confirmed that during ingestion, copying values from Tablets to MemTables can be very time-consuming, especially on some large servers.
Because the large servers are designed mainly for highly concurrent workloads, but not specialized for massive memory access.

To avoid massive memory operation during writing MemTables, I propose to also use TVList in 
request structures like Tablets.
As a result, in some situations, the data arrays in the Tablets can be directly moved into MemTables, avoiding expensive memory copy.




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