“Searches Skipped” reports the number of times that a task started to perform deadlock checking, but found deadlock checking in progress and skipped its check. “% of total” reports the percentage of deadlock searches that were skipped as a percentage of the total number of searches.
When a process is blocked by lock contention, it waits for an interval of time set by the configuration parameter deadlock checking period. When this period elapses, it starts deadlock checking. If a search is already in process, the process skips the search.
If you see some number of searches skipped, but some of the searches are finding deadlocks, increase the parameter slightly. If you see a lot of searches skipped, and no deadlocks, or very few, you can increase the parameter by a larger amount.
See the System Administration Guide for more information.
