[Nfd-dev] jNDN SegmentFetcher

[Davide Pesavento]

Hi Jeff,

AIMD was the original adaptive pipeline implemented in ndncatchunks,
later ported to ndn-cxx's SegmentFetcher. More recently, Klaus
implemented a Cubic-like window adaptation algorithm in ndncatchunks
and made it the default since it was shown to perform better than the
original AIMD. We should port Cubic to ndn-cxx as well, but so far
nobody has done that (there are a few other things in the API of
SegmentFetcher that I dislike, but that's a separate topic).

Adding *both* AIMD and Cubic to the CCL libraries makes little sense
to me. Cubic should be preferred for new implementations.

Davide

On Tue, Jun 4, 2019 at 12:53 PM Thompson, Jeff <jefft0 at remap.ucla.edu> wrote:
>
> This is a pull request for the jNDN segment fetcher for “aimd". There is a different pull request for the NDN-JS segment fetcher for “cubic pipeline”.
> https://github.com/named-data/ndn-js/pull/72
>
> What is the relationship between aimd and cubic pipeline. Should aimd be ported from jNDN to NDN-JS and PyNDN, etc. ? Should it replace the cubic pipeline in NDN-JS, or be added in addition to it?
>
> - Jeff T
>
> From: Nfd-dev <nfd-dev-bounces at lists.cs.ucla.edu> on behalf of nfd-dev <nfd-dev at lists.cs.ucla.edu>
> Reply-To: Ritik kumar <ritikkne at gmail.com>
> Date: Tuesday, June 4, 2019 at 5:31:00
> To: nfd-dev <nfd-dev at lists.cs.ucla.edu>
> Subject: [Nfd-dev] jNDN SegmentFetcher
>
> Hello all,
>
> I recently made a pull request to the jNDN repo containing code to provide AIMD pipelining support to the SegmentFetcher in the library. I have written a simple unit test along with it too. The link to the pull request:
> https://github.com/named-data/jndn/pull/24
>
> The Java SegmentFetcher used in the test is available here:
> https://github.com/dev-ritik/jndn/blob/aimd_pipelining/src/net/named_data/jndn/util/SegmentFetcher.java
>
> I ran a series of experiments on AIMD as well as fixed fetcher among the jNDN and the chunks utilities and the results I found can be found here,
>  https://docs.google.com/spreadsheets/d/1I11AvNxdttPvftFzk0DF_G650LGNkjGsK21mcumsysU/edit?usp=sharing
> The commands used are also included in the link above.
>
> The java class and other parameters used in the test can be found here,
> https://gist.github.com/dev-ritik/6a35a04c473affbc754a2c76142a02e0
>
> Please review the changes made so that I could improve it as required.
>
> --
>
> Thanks,
> Ritik Kumar
>
> GSoC student developer
>
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