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From "Julio Pires (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-913) Adding Implementation of RPC
Date Fri, 03 Oct 2014 11:51:35 GMT

    [ https://issues.apache.org/jira/browse/HAMA-913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14157915#comment-14157915
] 

Julio Pires commented on HAMA-913:
----------------------------------

Hello, I was reading the patch and benchmarks. Very interesting task. Good job. I believe
the performance will increase if you using zero-copy techniques [1]. Here has an example where
there is a gain of 65% [2]. Infiniband supports zero copy through of RDMA [3]. Netty also
has support [4].

1) http://en.wikipedia.org/wiki/Zero-copy
2) http://www.ibm.com/developerworks/library/j-zerocopy/
3) http://en.wikipedia.org/wiki/InfiniBand
4) http://pt.slideshare.net/danbim/zerocopy-eventdriven-servers-with-netty

> Adding Implementation of RPC
> ----------------------------
>
>                 Key: HAMA-913
>                 URL: https://issues.apache.org/jira/browse/HAMA-913
>             Project: Hama
>          Issue Type: Improvement
>          Components: bsp core
>    Affects Versions: 0.6.4
>            Reporter: ByungSeok Min
>            Priority: Minor
>              Labels: core, messaging, netty
>             Fix For: 0.7.0
>
>         Attachments: HAMA-913-v01.patch, HAMA-913-v02.patch, HAMA-913-v03.patch
>
>
> The current RPC server code is too complex and there are some unnecessary code
> So, It seems good to add implementation of RPC such as netty



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