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https://issues.apache.org/jira/browse/HDFS-13168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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BELUGA BEHR updated HDFS-13168:
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Attachment: HDFS-13168.1.patch
> XmlImageVisitor - Prefer Array over LinkedList
> ----------------------------------------------
>
> Key: HDFS-13168
> URL: https://issues.apache.org/jira/browse/HDFS-13168
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Affects Versions: 3.0.0
> Environment: {{ArrayDeque}}
> {quote}This class is likely to be faster than Stack when used as a stack, and
> faster than LinkedList when used as a queue.{quote}
> .. not to mention less memory fragmentation (single backing array v.s. many
> ArrayList nodes).
> https://docs.oracle.com/javase/8/docs/api/java/util/ArrayDeque.html
> Reporter: BELUGA BEHR
> Priority: Minor
> Attachments: HDFS-13168.1.patch
>
>
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