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https://issues.apache.org/jira/browse/HDFS-11814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16116214#comment-16116214
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Wei Zhou commented on HDFS-11814:
---------------------------------
I did some performance testing on EC IO performance with different EC schema
and cell size, ISA-L library is used in the testing.
{{TestDFSIO}} used to test read/write performance, the following two parameters
used for testing.
{{-nrFiles 1 -size 10GB}}
Overall execution time is used for comparison:
!RS-Write.png!
!RS-Read.png!
Cluster hardware configuration:
CPU: 2 Sockect, Xeon E5-2699 v3 @ 2.30GHz
Memory: 256GB
Storage: Seagate Momentus 7200.5 ST9750420AS, HDD, 7 disks per node
Network: 1000Mb/s
OS: CentOS 7.2
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-Read.png, RS-Write.png
>
>
> Doing some benchmarking to see which cell size is more desirable, other than
> current 64k
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