Page generated in 61.30328 seconds
 

This morning, my forum suddenly slowed down to a crawl with every page taking at least 60 seconds to load:

Page generated in 61.30328 seconds with 19 queries (1 queries for uncached templates) [Server Loads: 0.61 0.51 : 0.66]

As you can see the server load is very low. The database has no errors. It is a dedicated server and other sites are not experiencing a problem. I have turned the fourms offline and changed the forum homepage template to default and the pages are still taking 60 seconds to generate.

No-one made any changes before this happened. It was fast when I woke up in the morning but slow when I later checked in the day. It has been 12 hours now. Any clues or places where I could look?

Thanks