If you’re not using the InnoDB engine in your MySQL databases, make sure its disabled in your my.conf by uncommenting or adding the
skip-innodb directive. This simple change can free up some precious resources since MySQL is now only required to start up one engine.
Before I turned off the InnoDB engine my memory footprint looked like this:
total used free shared buffers cached Mem: 1022 1012 10 0 133 673 -/+ buffers/cache: 205 817 Swap: 2047 0 2047
After I turned off InnoDB an restarted MySQL…
total used free shared buffers cached Mem: 1022 982 39 0 133 676 -/+ buffers/cache: 172 849 Swap: 2047 0 2047
That small change saved me 33MB of memory. Thats about 3% of the 1GB I have on my small VPS.