Amazing to think they were actually spawning 150k headless browsers to simulate the traffic. That sounds like throwing money at the problem and it probably worked (for a while anyway).
Having built a load-test tool as well, I can say making it realistic enough and keeping it that way is possibly the hardest challenge. Maintenance cost is high, especially in a features focused environment.
Having built a load-test tool as well, I can say making it realistic enough and keeping it that way is possibly the hardest challenge. Maintenance cost is high, especially in a features focused environment.