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Date: Tue, 17 Sep 2013 20:15:52 +0000 (UTC)
From: "Haohui Mai (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HADOOP-9669) There are multiple array creations
 and array copies for a single nfs rpc reply
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     [ https://issues.apache.org/jira/browse/HADOOP-9669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Haohui Mai updated HADOOP-9669:
-------------------------------

    Attachment: HADOOP-9669.002.patch

A patch that addresses Brandon's comments.

I'll address 4/5 in HADOOP-9966. 
                
> There are multiple array creations and array copies for a single nfs rpc reply
> ------------------------------------------------------------------------------
>
>                 Key: HADOOP-9669
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9669
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: nfs
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Haohui Mai
>         Attachments: HADOOP-9669.001.patch, HADOOP-9669.002.patch, HADOOP-9669.patch
>
>
> XDR.writeXxx(..) methods ultimately use the static XDR.append(..) for writing each data type.  The static append creates a new array and copy data.  Therefore, for a singe reply such as RpcAcceptedReply.voidReply(..), there are multiple array creations and array copies.  For example, there are at least 6 array creations and array copies for RpcAcceptedReply.voidReply(..).

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