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+### Purpose of this folder - Quickview
+
+1. contains place holders for upstream source code package.
+2. manages the package dependency
+3. provides simple one-button build for test developers
+
+### Motivation Explained
+
+There are multiple goals for the project vswitch performance characterization.
+First, it is a generic test framework that can be used to characterize any vswitch solution.
+Second, it is to be as CI tool to validate any change during development.
+
+For the first goal, it would be nice to get all the relevant upstream source package and
+to provide a easy build environment for a given test developer. Obviously we don't want to
+rewrite the makefile system from upstream project. However we need to add a wrapper to the
+individual packages to manage package dependecy. For example, to test ovs-dpdk vswitch solution,
+the build of ovs would depend on the build result of dpdk.
+This dependency is never explicitly specified in the individual package.
+
+For the second goal as a CI tool, it may not be needed to pull the upstream package.
+So this whole folder can be ignored.
+
+### Files and subfolders
+
+* package-list: contains list of packages and their associated tags
+* mk: contains top level makefiles
+* dpdk: place holder for dpdk package
+* ovs: place holder for ovs package.