> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/sql-functions/secondary-functions/information-functions/benchmark.md).

# BENCHMARK

## Syntax

```bnf
BENCHMARK(count,expr)
```

## Description

The BENCHMARK() function executes the expression `expr` repeatedly `count` times. It may be used to time how quickly MariaDB processes the expression. The result value is always 0. The intended use is from within the [mariadb client](/docs/server/clients-and-utilities/mariadb-client/mariadb-command-line-client.md), which reports query execution times.

## Examples

```sql
SELECT BENCHMARK(1000000,ENCODE('hello','goodbye'));
+----------------------------------------------+
| BENCHMARK(1000000,ENCODE('hello','goodbye')) |
+----------------------------------------------+
|                                            0 |
+----------------------------------------------+
1 row in set (0.21 sec)
```

<sub>*This page is licensed: GPLv2, originally from*</sub> [<sub>*fill\_help\_tables.sql*</sub>](https://github.com/MariaDB/server/blob/main/scripts/fill_help_tables.sql)

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