Merge "Yardstick integration design specification"

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diff --git a/docs/designspec/index.rst b/docs/designspec/index.rst
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@@ -12,3 +12,4 @@ QTIP Design Specifications
 
    dashboard.rst
    compute_QPI.rst
+   integration_with_yardstick.rst
diff --git a/docs/designspec/integration_with_yardstick.rst b/docs/designspec/integration_with_yardstick.rst
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@@ -0,0 +1,92 @@
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+.. (c) 2016 ZTE Corp.
+
+
+**************************
+Integration with Yardstick
+**************************
+
+Problem description
+===================
+
+For each specified QPI [1]_, QTIP needs to select a suite of test cases and collect
+required test results. Based on these results, Qtip calculates the score.
+
+Proposed change
+===============
+Qtip has a flexible architecture [2]_ to support different mode: standalone and agent.
+It is recommended to use **agent mode** to work with existing test runners. Yardstick will
+act as a runner to generate test result and trigger Qtip agent on the completion of test.
+
+
+Work Items in Yardstick
+-----------------------
+
+1. Create a customized suite in Yardstick
+
+Yardstick not only has many existing suites but also support customized suites. Qtip could
+create a suite named **Qtip-PoC** in Yardstick repo to verify workflow of Qtip agent mode.
+
+2. Launch Qtip in Yardstick
+
+Whether to launch Qtip will be determined by checking the existence of OS environment
+variable *QTIP*. If it exists, Qtip will be launched by using Yardstick CLI
+`yardstick plugin install` [3]_.
+
+3. Yardstick interacts with Qtip
+
+See
+`Yardstick-Qtip+integration <https://wiki.opnfv.org/display/yardstick/Yardstick-Qtip+integration>`_
+for details.
+
+Work Items in Qtip
+------------------
+
+1. Provide an API for Yardstick to post test result and environment info
+
+After completing test execution, Yardstick will post test result and enviroment info with
+JSON format via QTIP API. See
+`Yardstick-Qtip+integration <https://wiki.opnfv.org/display/yardstick/Yardstick-Qtip+integration>`_
+for details.
+
+2. Parse yardstick test result
+
+When Qtip agent receive Yarstick test result and enviroment info, Qtip agent will extract
+metrics which is definded in metric spec configuration file. Based on these metrics, Qtip
+agent will caculate QPI.
+
+3. Provide an API for querying QPI
+
+Qtip will provide an API for querying QPI. See
+`Yardstick-Qtip+integration <https://wiki.opnfv.org/display/yardstick/Yardstick-Qtip+integration>`_
+for details.
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+*Primary assignee:*
+  wu.zhihui
+
+*Other contributors*
+  TBD
+
+Testing
+=======
+
+The changes will be covered by new unit test.
+
+Documentation
+=============
+
+TBD
+
+Reference
+=========
+
+.. [1] QTIP performance index
+.. [2] https://wiki.opnfv.org/display/qtip/Architecture
+.. [3] https://wiki.opnfv.org/display/yardstick/How+to+install+a+plug-in+into+Yardstick