Oracle
1Z0-888 · Question #70
1Z0-888 Question #70: Real Exam Question with Answer & Explanation
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Performance Tuning
Question
You are investigating the performance of the server and see this information:
- events_waits_summary_global_by_event_name in the Performance Schema shows that the wait/synch/mutex/sql/LOCK_table_cache_event is dominating other wait events.
- The table_open_cache_overflows status variable is 0. Which action should be taken to remove the performance bottleneck described here?
Options
- AIncrease the value of table_open_cache_instances.
- BDecrease the value of table_definition_cache.
- CDecrease the value of table_open_cache.
- DIncrease the value of table_definition_cache.
- EIncrease the value of table_open_cache.
- FDecrease the value of table_open_cache_instances.
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Topics
#table cache contention#mutex lock analysis#Performance Schema#configuration tuning