MariaDB Blog

December 16, 2010

MariaDB optimization for string related operations

In our upcoming MariaDB 5.3 release Monty optimized the internal string append code for performance. I tested his patch with a plain MariaDB 5.2 vs. a patched MariaDB 5.2 with sql-bench, which showed an overall performance gain around 3%. The details of the patch Monty describes like this

Patch to optimize string append: While examining a trace output from a mysql-test-run case, I noticed a lot of reallocation calls.  This was strange as MariaDB/MySQL was designed to do so few malloc/realloc as possible.  The system uses was

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