Abstract: A server sets a task start time equal to a next polling time by a last agent that has most recently polled the server. In response to each of a number of agents, including the last agent, polling the server, the server provides the task start time. At each agent, a task is started at the task start time, such that all the agents start the task at a same time. As such, all the agents except for the last agent have to wait for the task start time to start the task after polling the server, whereas the last agent starts the task immediately after polling the server. The server may also determine a polling interval time based on a number of the agents that have polled the server, where the polling interval time indicates how long each agent waits between successive pollings of the servers.

Abstract: A method and system are provided to replay an HTTP transaction that is comprised of multiple events. Each event is identified and organized based upon transaction of events over the course of time. The events of the transaction are replayed and organized into an order dependent relationship. The number of computations increases linearly with the number of events in the transaction.