Comparing the two solutions

Now it's time to test the serial and concurrent servers and see which has a better performance. We have automatized the tests implementing four classes that make queries to the servers. These classes are:

• SerialClient: This implements a possible client of the serial server. It makes nine requests using the query message and a query using the report message. It repeats the process 10 times, so it request 90 queries and 10 reports.
• MultipleSerialClients: This class simulates the existence of several clients at the same time. For this, we create a thread per SerialClient and execute them at the same time to see the performance of the server. We have tested from one to five concurrent clients.
• ConcurrentClient: It is analogue to the SerialClient class, but it calls the concurrent server instead of the serial one.
• MultipleConcurrentClients: It is analogue to the MultipleSerialClients class, but it calls the concurrent server instead of the serial one.

To test the...