Advantages of thread-safe agents

Threading offers the following advantages over serial agents:

Computer resources on Domino® Web servers are used more efficiently.
The system allows concurrent use by many people.
The client/server programming model can be used.

Domino Release 4.5.1 and later supports multiple Web agents, allowing each LotusScript® agent to run in a separate thread in the same process. In Domino, if multiple users activate Web agents simultaneously and the server is not thread-enabled, the agents will be serialized. To enable Domino synchronized agents, see the section "Running asynchronous agents on the Domino server."

Agents run serially

In this example, User A's agent had control over the server until it completed. User B saw no activity until Agent 1 was finished.

Time	Operation	Comments
0		User A activates Agent 1.
1	Compute	Agent 1 starts. User B activates Agent 2.
2	Compute	Agent 1 running.
3	Compute	Agent 1 running.
4	Compute	Agent 1 running.
5	Print	Agent 1 ends.
6	Compute	Start User B's Agent 2.
7	Print	Agent 2 ends.

Threaded agents

In this example, User B sees results sooner. User A sees response later, but the time difference is not noticeable.

Time	Thread1	Thread2	Comments
0			User A activates Agent 1.
1	Compute		Agent 1 starts. User B activates Agent B.
2	Compute		Agent 1 running.
3		Compute	Agent 1 swapped out. Agent 2 starts.
4		Print	Agent 2 ends.
5	Compute		Agent 1 running.
6	Compute		Agent 1 running.
7	Print		Agent 1 ends.

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