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https://issues.apache.org/jira/browse/HDFS-11814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16125290#comment-16125290
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Wei Zhou commented on HDFS-11814:
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Hi [~andrew.wang], I set the {{nrFiles}} to 89 to simulate high concurrent
workload, iostat shows the average disk utilization larger than 90%. The
performance result shows in the following chart:
!RS-6-3-Concurrent.png!
>From the figure above, we can see that the performance increases with the cell
>size in the range of 32KB to 1MB, so it's better to use 1MB cell.
Do you have any comment here? Thanks!
> Benchmark and tune for prefered default cell size
> -------------------------------------------------
>
> Key: HDFS-11814
> URL: https://issues.apache.org/jira/browse/HDFS-11814
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: SammiChen
> Assignee: Wei Zhou
> Labels: hdfs-ec-3.0-must-do
> Attachments: RS-6-3-Concurrent.png, RS-Read.png, RS-Write.png
>
>
> Doing some benchmarking to see which cell size is more desirable, other than
> current 64k
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