What is mysqlslap?

Question

mysqlslap is a diagnostic program designed to emulate client load for a MySQL server and to report the timing of each stage. It works as if multiple clients are accessing the server.

What is explain in MySQL?

The EXPLAIN statement provides information about how MySQL executes statements: EXPLAIN works with SELECT , DELETE , INSERT , REPLACE , and UPDATE statements. When EXPLAIN is used with an explainable statement, MySQL displays information from the optimizer about the statement execution plan.

How to test the performance of a MySQL query?

There are actually quite a number of ways to measure and benchmark queries in MYSQL:1The simplest way is to run the query in the command line, MYSQL is set to show the query execution time by default.2Similarly, with tools like MYSQL Workbench and PHPMyAdmin, the execution time will be shown after running the query.

What is equivalent of Mysqladmin reload command?

CommandDescriptionflush-privilegesReload grant tables (same as reload).flush-relay-logFlush relay log.flush-slow-logFlush slow query log.flush-sslFlush SSL certificates.

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