12.06.2015, 20:55
Update stuff when it changes, rather than everything at once. And no, it won't stress your MySQL server.
For comparison: this forum runs MySQL. On average, for every page that is loaded 10 queries are executed. There are over 600 people online right now, so we can assume that 6,000 queries or more are executed every minute.
For comparison: this forum runs MySQL. On average, for every page that is loaded 10 queries are executed. There are over 600 people online right now, so we can assume that 6,000 queries or more are executed every minute.