Yuan Tian created IOTDB-6141:
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Summary: Optimize the large time range raw query performance
Key: IOTDB-6141
URL: https://issues.apache.org/jira/browse/IOTDB-6141
Project: Apache IoTDB
Issue Type: Improvement
Components: Core/Query
Reporter: Yuan Tian
Assignee: Yuan Tian
Attachments: image-2023-09-07-14-47-48-090.png,
image-2023-09-07-14-51-04-689.png, iot-query.properties, iot-write.properties
Use the iot-write.properties in attachment to generate data.
Then use the iot-query.properties in attachment to test query performance, you
can get the following result:
!image-2023-09-07-14-47-48-090.png!
After profiling the DataNode, we found that much time wasting in
Array.growCapacity which can be totally avoided, because we can estimate the
TsBlock size using page statistics.
!image-2023-09-07-14-51-04-689.png!
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