Web- Query profiling is a performance tuning tool provided by MySQL server that allows you to see resource usage profiles of a given query. Here are the main steps to use the query … Webmysql> SET profiling = 1; SHOW PROFILES displays a list of the most recent statements sent to the server. The size of the list is controlled by the profiling_history_size session …
"SHOW PROFILE" - Query Profiling - Herong Yang
Webデフォルトでは、 SHOW PROFILE は Status および Duration カラムを表示します。 この Status 値は SHOW PROCESSLIST によって表示される State 値に似ていますが、一部のステータス値では、この 2 つのステートメントの解釈にわずかな違いがいくつか存在する可能性があります ( セクション8.14「サーバースレッド (プロセス) 情報の確認」 を参照して … Webmysql> SELECT event_name AS Stage, TRUNCATE (TIMER_WAIT/1000000000000,6) AS Duration FROM performance_schema.events_stages_history_long WHERE NESTING_EVENT_ID=31; +--------------------------------+----------+ Stage Duration +--------------------------------+----------+ stage/sql/starting 0.000080 stage/sql/checking permissions 0... bj\\u0027s washer dryer sale
27.19.1 Query Profiling Using Performance Schema - MySQL
WebEach user may have at least one entry for every hour of every day. Therefore, id is not unique. Edit: I have another table with the same structure and much more rows (34 Million). If I run the same query on this larger table, it returns the results in less than 1 second. WebMar 2, 2024 · The MySQL client time includes the time it takes to transfer query results over the network, but the query profile time does not include network transfer time. Since the client that reports fast time is on an instance in AWS, and is therefore close to the RDS database, that is expected to have a better time. WebOr another plan (and this is probably overkill): reboot the server, run query A and view its profile. Reboot again and run & profile only query B. Compare the two profiles. My conclusion is that doing MySQL profiling on small tables (e.g. 10 rows) is fruitless. dating this or that questions