perl-Algorithm-TokenBucket

Token bucket rate limiting algorithm

The Token Bucket algorithm is a flexible way of imposing a rate limit against a stream of items. It is also very easy to combine several rate-limiters in an 'AND' or 'OR' fashion. Each bucket has a constant memory footprint because the algorithm is based on the 'information rate'. Other rate limiters may keep track of _ALL_ incoming items in memory. It allows them to be more accurate. FYI, the 'conform', 'count', 'information rate', and 'burst size' terms are taken from the at <a href="http://linux-ip.net/gl/tcng/node62.html">http://linux-ip.net/gl/tcng/node62.html</a> page of the at <a href="http://linux-ip.net/gl/tcng/">http://linux-ip.net/gl/tcng/</a> system documentation.