Jabber XCP scales past one million concurrent users

Jabber, Inc. today announced the results of load and scalability testing conducted in Sun Microsystems’ Benchmark Centers. The tests were performed on the Jabber Extensible Communications Platform (Jabber XCP) and began with a benchmark of 420,000 concurrent users on two Sun Fire T2000 servers. At the peak of scalability testing, the messaging platform was supporting in excess of one million concurrent users in a single Jabber XCP domain stretched across eight Sun Fire T2000 servers. Each additional server added the capability to support an incremental 150,000 concurrent users. Over the course of the trials, Jabber, Inc. reports that CPU utilization decreased significantly with each additional box, even with the additional users, suggesting that the efficiency of Jabber XCP increases with greater scale.

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