Performance Implications of MySQL Event Scheduling
<p>I've got a use case for creating temporary users on a MySQL database, and then dropping them after 24 hours. I'll be doing this enough that I'd like to automate the process and package it with the user creation script, so that I don't have to keep track of the process.</p>

<p>I've looked around the internet for docs, questions, gossip about the performance implications of MySQL event scheduling, but I haven't found anything  discouraging. I've seen another question about the "cost" MySQL scheduled events, but the discussion mostly covers a comparison between scheduling DB tasks using <code>cron</code> vs. using MySQL event scheduling.</p>

<p>I'm running on Amazon RDS, so <code>cron</code> won't work for me. MySQL event scheduling looks like the right solution. I'm scheduling a pretty lightweight event--dropping one user at a time, 24 hrs after creation--but I'll have to keep MySQL's event scheduler enabled 24/7. Is there any performance cost to this? If not, why isn't the event scheduler enabled by default?</p>