Total amount of dynamic memory the server is using for query optimization. Total amount of dynamic memory the server is using for maintaining connections. Number of seconds a page will stay in the buffer pool without references. Number of pages used for miscellaneous server purposes (including procedure cache). Number of pages in the buffer pool with database content. Generally, you can increase the buffer cache hit ratio by increasing the amount of memory available to SQL Server. Because reading from the cache is much less expensive than reading from disk, you want this ratio to be high. After a long period of time, the ratio moves very little. The ratio is the total number of cache hits divided by the total number of cache lookups since an instance of SQL Server was started. Percentage of pages found in the buffer cache without having to read from disk. Number of times locks on a table were escalated. Number of page splits per second that occur as the result of overflowing index pages. These can be either base-table or full-index scans. Number of unrestricted full scans per second. Total number of logout operations started per second. Total number of logins started per second. Set user connections to the maximum expected number of concurrent users. Because each user connection consumes some memory, configuring overly high numbers of user connections could affect throughput.
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