The AJAX auto refresh feature is hitting my server hard...
Any ideas? It's on an Xeon 5520, and we only have 300 guests on usually, most of them not even viewing the index. Without auto refresh load is around 0.50.
The refresh interval is set at 120 as well, hardly high. If it matters we are using nginx and PHP 5.3.
What's interesting is that if I restart PHP, the load goes back to normal for about a couple hours or so.
EDIT: well I fixed it, sort of. using nginx to cache the AJAX requests to misc.php in static files. load is back to normal, but this technique requires a bit of script modification and nginx know-how. if anyone is faced with the same issue and interested in knowing how I did it, just let me know.