" - As the look up of the field show, the easieset-to-use tool for such primitive plotting tasks seems to be JFreeChart. Any propositions?"
Take care, JFreeChart points some dependencies with Fonts (with open-jdk). I am not sure that this open-jdk bug is solved. *cf.*: http://stackoverflow.com/questions/12212604/openjdk-font-dependencies nicolas - Nicolas Hernandez a-n - aleph-networks *PDG - CEO* http://www.aleph-networks.com On Thu, Aug 1, 2013 at 9:30 PM, Vladislav Sterzhanov <gliderok at gmail.com>wrote: > This one will be related to benchmarking and stats gathering : > - Repo > - Current functionality > - To-Do List for toadlet and stats > - Issues > > ----------------------------------------------------------------------------------------- > > | Repo > The repository for the GSoC-2013 Transport Layer Project, which I'm > developing can be found here (https://github.com/Quadrocube/fred-staging) > at the branch transport_layer_modifications (probably should rename it and > add another for actuall transport layer changes - the current code there is > related to the base for benchmarking only). > > | Current functionality > LinkStatistics class was presented to represent the gathered link indexes > and two LinkStatistics fields were added to a PeerNode - the first one > (linkStatsTotal) is used for attaching a benchmark-aware listener to it and > serves for benchmark measurements. The other LinkStatistics field in > PeerNode (shortRunLinkStats) will be utilized for a several actually > transport-related modifications. > LinkStatisticsToadlet acts as web-interface for the link sampling. Upon > activation (Connections to Friends - select "test connection" near the > friend's noderef - enter the sample size, press "Test conection"), it > attaches a listener (LinkStatistics.StatsChangeTracker) to a chosen > peerNode.linkStatsTotal, initiates a BulkTransfer of the given size, and > monitors several usefull for later analysis activities. Currently it > produces only a grand-total upon the end of the transfer but there are > callbacks introduced that can be used to build up a more precise dynamic > analytics. > Note: In order for this to work, both testing and tested peer should be > supplied with the version of freenet from this branch. Reason: it contains > the receiver-side modification to get rid of the need to manualy accept > each test. > > | To-do list for toadlet and stats > - Introduce the monitoring of other characteristics of a connection - > like e.g. bandwitdth measuring, average packet size seen, ... (Stats) > - Implement the dynamic logs in form of graphs - currently the most > vital things that will be usefull to have are (in order of importance): > congestion_window_utilized-from-time graph, bandwidth-from-time graph, > data_in_flight-from-time graph, payload_to_alldata-from-time, > averageRTT-from-time, etc.. (Toadlet) > - Localization (in a long term, not vital currently) (Toadlet) > - Forbid the link sampling in case of huge load on the monitored node. > There are already means to reject the test for the peer, but they are not > used currently (See NodeDispatcher.java) (Toadlet) > > | Issues > - As the look up of the field show, the easieset-to-use tool for such > primitive plotting tasks seems to be JFreeChart. Any propositions? > - Potentially very long locking in POST at toadlet - need to fix it > somehow. Once again, a long-term thing. > > After all that is ready, I am passing to the implementation of the todo > list discussed at the previous report and comparing the results obtained by > that implementation against the benchmark results of the current one. And > at last it will be possible to estimate the reasons for many suspicious > transfer failures (e.g. LAN-transfering 1MiB files for minutes) and fix > them. > > quadrocube > _______________________________________________ > Devl mailing list > Devl at freenetproject.org > https://emu.freenetproject.org/cgi-bin/mailman/listinfo/devl >
