How much capacity is enough? A question first answered for telephone exchanges — and still asked every quarter.
In 1909 the Danish engineer Agner Krarup Erlang worked out how many lines a telephone exchange needs so that callers rarely hear a busy signal. His unit of traffic and his formulas are still used to size call centres, connection pools and network links.
The Erlang Laboratory studies demand: how traffic varies by hour, by day and by region, how it reacts to outages elsewhere, and how much headroom a system needs to absorb it. We turn long-term traffic measurements into planning models that engineers can use without a statistics degree.
Lab lead: Dr. Mette Kjaergaard
Multi-year measurements of daily and weekly traffic patterns across hosting regions and time zones.
Erlang-style models for database connection pools, worker queues and rate limiters.
How much extra load lands on surviving regions when one region fails, and how fast it arrives.
We welcome joint research, student projects and dataset requests. Write to lab@erlang.network-labs.sm-ventures.ru.