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Posted to reviews@iotdb.apache.org by "Cpaulyz (via GitHub)" <gi...@apache.org> on 2023/11/22 03:45:17 UTC

[PR] Optimize memory usage of fetchSchema when inserting data [iotdb]

Cpaulyz opened a new pull request, #11591:
URL: https://github.com/apache/iotdb/pull/11591

   ## Description
   
   Use HashMap instead of 2D arrays to avoid space occupation in sparse matrices. Experiments with `testFetchSchemaPerfomance` demonstrate that performance is not affected, but there is a significant reduction in memory usage.
   
   Before：
   <img width="1227" alt="image" src="https://github.com/apache/iotdb/assets/43774645/e1d4d396-392c-4181-8fa3-dddeb612e318">
   
   
   After：
   <img width="1175" alt="image" src="https://github.com/apache/iotdb/assets/43774645/ec2e2741-9f0b-4306-9ffe-3ff2160e37c6">
   


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Re: [PR] Optimize memory usage of fetchSchema when inserting data [iotdb]

Posted by "MarcosZyk (via GitHub)" <gi...@apache.org>.

MarcosZyk merged PR #11591:
URL: https://github.com/apache/iotdb/pull/11591


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