MySQL :: MySQL 5.6 Reference Manual :: 22.1 Performance ⦠Here is the command for the same. It provides details about query execution in a structured way, accessible through SQL. However, in actuality, they are views and not base MySQL tables. The MySQL Performance Schema is a feature for monitoring MySQL Server execution at a low level. All could be reasons for excessive MySQL memory usage, but you would not easily see if that is just the case. Due to this topic i got interested by performance schema, can anyone advise where can i find documentation about it? 27.19 Using the Performance Schema to Diagnose Problems It is implemented using the PERFORMANCE_SCHEMA storage engine and the performance_schema database. Lately Iâve found the SYS schema even more useful than pt-query-digests for the silliest of reasons: while the slow log is not enabled by default, the SYS schema just uses the underlying PERFORMANCE_SCHEMA, that is on by default since 5.6. The Performance Schema has these characteristics: ⢠The Performance Schema provides a way to inspect internal execution of the server at runtime. MySQL Performance Schema Hi all I wonder that Performance_schema_table_handles_lost is getting increasing in mysql 5.7. select * from sys.memory_global_by_current_bytes MySQL :: Performance_schema
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