X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=docs%2Freport%2Fvpp_performance_tests%2Fpacket_throughput_graphs%2Fl2.rst;h=5344dd7d51a94c8f36c1969529aecdcd394ae1ae;hp=d9a69015e4e14e732b482c1e396c68c45658bded;hb=fa8714742330382e764419c0432099702f182da1;hpb=fc30d9f7d402c82b69ba3c93d87bf5d7536a13a8

diff --git a/docs/report/vpp_performance_tests/packet_throughput_graphs/l2.rst b/docs/report/vpp_performance_tests/packet_throughput_graphs/l2.rst
index d9a69015e4..5344dd7d51 100644
--- a/docs/report/vpp_performance_tests/packet_throughput_graphs/l2.rst
+++ b/docs/report/vpp_performance_tests/packet_throughput_graphs/l2.rst
@@ -7,11 +7,15 @@ and PDR throughput (<0.5% packet loss). Performance is reported for VPP
 running in multiple configurations of VPP worker thread(s), a.k.a. VPP
 data plane thread(s), and their physical CPU core(s) placement.
 
-Results are generated by multiple executions of the same CSIT tests.
-In order to display variation in measured throughput values, Box-and-
-whisker plots are used to show their quartiles (Min, 1st quartile / 25th
-percentile, 2nd quartile / 50th percentile / mean, 3rd quartile / 75th
-percentile, Max). Outliers are plotted as individual points.
+Results are generated by multiple executions of the same CSIT
+performance tests across three physical testbeds within LF FD.io labs.
+To provide a descriptive summary view, Box-and-Whisker plots are used to
+display variation in measured throughput values, without making any
+assumptions of the underlying statistical distribution. For each plotted
+test case, Box-and-Whisker plots show the quartiles (Min, 1st quartile
+/ 25th percentile, 2nd quartile / 50th percentile / mean, 3rd quartile /
+75th percentile, Max) across collected data set (data set size stated in
+the note below). Outliers are plotted as individual points.
 
 *Title of each graph* is a regex (regular expression) matching all
 throughput test cases plotted on this graph, *X-axis labels* are indices
@@ -26,7 +30,9 @@ legend* lists the plotted test suites and their indices.
     `csit-vpp-perf-1704-all
     <https://jenkins.fd.io/view/csit/job/csit-vpp-perf-1704-all/>`_,
     with Robot Framework result files csit-vpp-perf-1704-all-<id>.zip
-    `archived here <../../_static/archive/>`_
+    `archived here <../../_static/archive/>`_. Plotted data set size per
+    test case is equal to the number of job executions presented in this
+    report version: **5**.
 
 NDR Throughput
 ~~~~~~~~~~~~~~