final int warmupSec = 30;
final int steadySec = 60;
LoadGenerator gen = new BackToBackLoadGenerator();
gen.init(clients);
println("starting warmup...");
gen.startWarmup();
Thread.sleep(1000L * warmupSec);
println("entering steady state...");
gen.startSteadyState();
Thread.sleep(1000L * steadySec);
println("stopping threads...");