The number of deadlocks that have occurred in the database. If this number is high, applications can experience contention problems caused by any of these conditions:
Lock escalations are occurring in the database
An application is locking tables explicitly when system-generated row locks are sufficient
An application is using an inappropriate isolation level during the bind process
Catalog tables are locked for repeatable reads
Applications are obtaining identical locks in different orders, resulting in deadlocks
Access the Client Application Analysis drilldown to determine in which applications the deadlocks are occurring. Perhaps tweaking these applications will enable them to execute with a higher degree of concurrency.