Houston, we have problem

This month the counters of the livecounter website are running in overtime. There are a few new websites using the counter, they doubled the total amount of requests! The website was doing some 100-150 req/s average daily. Since this month the amount of requests are almost 400 req/s.

Due this amount we are experiencing some performance problems at spike moments. We are looking into new ways to reduce the load and still handle this amount of traffic. Here are some stats:

Max requests per second: 900
Minimal requests per second: 150
Traffic handled by CDN: 35GB
Daily amount of loglines: 33+ million
Uptime of 99.6%

Some images: