“Last Page Locks on Heaps” reports locking attempts on the last page of a partitioned or unpartitioned heap table. It only reports on allpages-locked tables.
This information can indicate whether there are tables in the system that would benefit from using data-only-locking or from partitioning or from increasing the number of partitions. Adding a clustered index that distributes inserts randomly across the data pages may also help. If you know that one or more tables is experiencing a problem with contention for the last page, Adaptive Server Monitor can help determine which table is experiencing the problem.
See “Improving insert performance with partitions” for information on how partitions can help solve the problem of last-page locking on unpartitioned heap tables.