> ... I want to know, which test tool should I choose? The [CLI shell](https://sqlite.org/cli.html) provides a timer, operation of which is controlled by the .timer command. That should be suitable for most users' purposes when evaluating query performance or the effect of compilation options. > ... What method do you use to test the performance of \[SQLite\]? Several methods are used, including measuring runtime as the CLI shell does. Some provide a much finer-grained measure than users normally need.