This is a test application to validate the gDSU. This application represents a stateful chat server.

This bench application can be used to:

• Validate updates on application code while migrating live instances.
• Validate updates to the kernel libraries of the environment.
• Validate updates to the DSU tool itself.
• Execute benchmarks on the DSU implementation.

#Installation

This benchmark should run in Pharo 6.1. Cloning this repository and executing will download all the dependencies and install them in a fresh Pharo 6.1 image in the build directory.

./install.sh

#Running

To run the application just execute:

./run.sh

Following the instructions in the open Pharo Playground.

#Running Benchmark

The HTTP benchmarks has been performed using JMeter A script for JMeter is present in the root of this repository. It is called chatServer.jmx

This file has a test plan called "Chat Server Update test". This is the test plan to run to generate load in the server. To execute the update a HTTP request to the server should be performed (this is not done by the test plan) from a web browser.

The possible urls are the following:

• http://localhost:1701/updateV1ToV2 which updates from V1 to V2.

• http://localhost:1701/updateV2ToV1 which updates from V2 to V1.

• http://localhost:1701/updateV1ToV2 which updates from V1 to V2.

• http://localhost:1701/updateV1ToV2 which updates from V1 to V2.

• http://localhost:1701/updateKernel which updates the Kernel implementation of OrderedCollection.

• http://localhost:1701/revertUpdateKernel which reverts the Kernel implementation of OrderedCollection.

• http://localhost:1701/updateAtomicProcess which updates the DSU implementation.

• http://localhost:1701/revertUpdateAtomicProcess which reverts the DSU implementation.