It is possible for up to 1000 users to connect to an IQ Server, but the Server may not have enough resources to support 1000 users, so the switches –gm and –iqgovern should be used.

-gm limits the number of users, who can connect at one time. If –gm is set to 100, then the 101st attempted connection will get the error message, “Database server connection limit exceeded”.

-iqgovern limits the number of concurrent (simultaneous) active queries. The default value is either,
2*numCPU + 10
or
2*numCPU + 4
depending on what version of IQ is running.

If –iqgovern is set to 20 and there are 20 active queries running on the IQ server then the 21st query will not be executed immediately, but put into a queue. Performance may be improved by configuring a smaller value for -iqgovern, when there is a large number of users on the Server.