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Posted to notifications@iotdb.apache.org by "FengQingxin (Jira)" <ji...@apache.org> on 2022/10/10 02:03:00 UTC

[jira] [Commented] (IOTDB-4164) [ wal_mode=SYNC ] Performance needs to be optimized

    [ https://issues.apache.org/jira/browse/IOTDB-4164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17614842#comment-17614842 ] 

FengQingxin commented on IOTDB-4164:
------------------------------------

!image-2022-10-10-09-59-07-692.png!

图中三条线代表不同WAL_MODE配置参数下顺序写入性能记录。从数据上看SYNC性能差异过大，需要开发人员调研其他数据库SYNC和ASYNC是否也如此，如果不是那么为什么我们会有这么大的差异。

> [ wal_mode=SYNC ] Performance needs to be optimized
> ---------------------------------------------------
>
>                 Key: IOTDB-4164
>                 URL: https://issues.apache.org/jira/browse/IOTDB-4164
>             Project: Apache IoTDB
>          Issue Type: Improvement
>          Components: Core/WAL, mpp-cluster
>            Reporter: 刘珍
>            Assignee: Haiming Zhu
>            Priority: Major
>         Attachments: image-2022-08-17-11-38-15-849.png, image-2022-10-10-09-59-07-692.png
>
>
> wal_mode=SYNC的性能需优化 : 同样（bm）配置，SYNC耗时/ASYNC=2.77
>  !image-2022-08-17-11-38-15-849.png! 
> 复现流程见
> https://issues.apache.org/jira/browse/IOTDB-4161?filter=-2



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