[jira] [Assigned] (IOTDB-2636) [compaction] Compaction affects query performance

["刘珍 (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IOTDB-2636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

刘珍 reassigned IOTDB-2636:
-------------------------

    Assignee: 刘珍

> [compaction] Compaction affects query performance
> -------------------------------------------------
>
>                 Key: IOTDB-2636
>                 URL: https://issues.apache.org/jira/browse/IOTDB-2636
>             Project: Apache IoTDB
>          Issue Type: Bug
>          Components: Core/Compaction
>    Affects Versions: 0.13.0
>            Reporter: 刘珍
>            Assignee: 刘珍
>            Priority: Critical
>         Attachments: image-2022-03-01-14-30-59-082.png, image-2022-03-01-14-37-30-548.png, image-2022-03-01-14-44-37-559.png
>
>
> master-pre3
> 测试环境：
> 私有云8C32G，16Gheap，无乱序，长测配置。
> 1. master 关合并/开合并对比
> cwt代表参数 merge_write_throughput_mb_per_sec
> master开合并会导致查询性能下降约20%。
>  !image-2022-03-01-14-30-59-082.png! 
> 2. master-pre3和0.12.5-pre6开合并对比
> merge_write_throughput_mb_per_sec均为8
> master总体比0.12慢70%
>  !image-2022-03-01-14-37-30-548.png! 
> 这个查询对应的写入性能（作为查询基于的数据量的参照），master查询的数据不大于0.12.5：
>  !image-2022-03-01-14-44-37-559.png! 



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