0
votes
1answer
120 views

Calculating time spent on query cache lock

How can I calculate the total time my MySQL database is spending Waiting for query cache lock ? I've found two specific very simple tables that adding a SQL_NO_CACHE drastically improved the ...
17
votes
4answers
3k views

Why would I NOT use the SQL Server option “optimize for ad hoc workloads”?

I've been reading some great articles regarding SQL Server plan caching by Kimberly Tripp such as this one: http://www.sqlskills.com/blogs/kimberly/plan-cache-and-optimizing-for-adhoc-workloads/ Why ...