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Diffstat (limited to 'docs/report/introduction/methodology_data_plane_throughput/methodology_plrsearch.rst')
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1 files changed, 71 insertions, 2 deletions
diff --git a/docs/report/introduction/methodology_data_plane_throughput/methodology_plrsearch.rst b/docs/report/introduction/methodology_data_plane_throughput/methodology_plrsearch.rst index 1745edfb5e..4aa1019b4c 100644 --- a/docs/report/introduction/methodology_data_plane_throughput/methodology_plrsearch.rst +++ b/docs/report/introduction/methodology_data_plane_throughput/methodology_plrsearch.rst @@ -220,8 +220,77 @@ as the observed trends have varied characteristics. Probably, using a more realistic fitting functions will give better estimates than trend analysis. -.. - TODO: Add graphical examples created from 1904 data. +Graphical examples +`````````````````` + +The following pictures show the upper (red) and lower (blue) bound, +as well as average of stretch (pink) and erf (light green) estimate, +and offered load chosen (grey), as computed by PLRsearch, +after each trial measurement within the 2 hour duration of a test run. + +Both graphs are focusing on later estimates. Estimates computed from +few initial measurements are wildly off the y-axis range shown. + +L2 patch +-------- + +This test case shows quite narrow critical region. Both fitting functions +give similar estimates, the graph shows the randomness of measurements, +and a trend. Both fitting functions seem to be fairly precise in estimating +the critical rate, but the performance of the system decreases slightly +over time. The final estimated interval is fairly narrow, +but corresponds to the measured results. + +.. only:: latex + + .. raw:: latex + + \begin{figure}[H] + \centering + \graphicspath{{../_tmp/src/introduction/methodology_data_plane_throughput/}} + \includegraphics[width=0.90\textwidth]{PLR_patch} + \label{fig:PLR_patch} + \end{figure} + +.. only:: html + + .. figure:: PLR_patch.svg + :alt: PLR_patch + :align: center + +Vhost +----- + +This test case shows quite broad critical region. Fitting functions give +fairly differing estimates. Erf function overestimates, stretch function +is fairly precise (based on its estimate not moving much with time). +The graph mostly shows later measurements slowly bringing the estimates +towards each other. The final estimated interval is too broad, +a longer run would return a smaller interval within the current one. + +The broadness is caused by result composition, which consists of +mostly zero loss measurements, partialy of medium loss measurements, +and lack of small loss measurements the loss ratio target would imply. + +With this result composition, it is expected that the convergence +of the two bounds is slow. + +.. only:: latex + + .. raw:: latex + + \begin{figure}[H] + \centering + \graphicspath{{../_tmp/src/introduction/methodology_data_plane_throughput/}} + \includegraphics[width=0.90\textwidth]{PLR_vhost} + \label{fig:PLR_vhost} + \end{figure} + +.. only:: html + + .. figure:: PLR_vhost.svg + :alt: PLR_vhost + :align: center .. _draft-vpolak-bmwg-plrsearch-01: https://tools.ietf.org/html/draft-vpolak-bmwg-plrsearch-01 .. _plrsearch draft: https://tools.ietf.org/html/draft-vpolak-bmwg-plrsearch-00 |