Scalability Test

ev-i’s HA‑dispatcher builds on over 2 years of practical experience with several EFC client protocols in various customer projects. The codebase of HA‑dispatcher was designed from scratch, and permits the integration of customer-specified protocols in a minimal amount of time.
In its latest revision the code was subject to a series of scalability test on a 3‑node dual‑core JBOSS‑cluster to prove the basic design principals.

Result of the Scalability Test showing linear growth of session time

Result of the Scalability Test showing linear growth of session time

The illustration above  shows the results of the scalability test utilizing a test client inserting 10 fee transactions per device in each session, while establishing a uniquely associated TCP/IP connection for each session.

The test shows that the average number of fee transactions inserted into the database is nearly constant for up to 7000 concurrent TCP/IP connections. As a consequence the session time for each client shows a linear growth with the number of concurrent clients.

October 13th, 2009