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Plugin Description
Admin dashboard widget monitoring of query cache performance statistics – to optimize sizing configuration and highlight bottlenecks.
Query for ‘Options Autoload Size’ is freshly executed on each page load and its result size increases constantly over time and is closely related to the amount of data plugins save.
Heavy plugins might increase very significantly this query result size.
Poorly written plugins have been found to constantly increase this query result size.
Oversized ‘Options Autoload Size’ result is a top factor in slow wordpress sites and the potential cause of sudden performance degradation.
Monitor ‘Options Autoload Size’ fits into both ‘Query_cache_size’ and ‘Query_cache_limit’.
Monitor when ‘Qcache_lowmem_prunes’ occur.
Screenshots
Active query cache stats
Disabled query cache stats
Execute database command RESET QUERY CACHE
