Advantage of running Vuser as thread during Load test in Loadrunner

VuGen provides the facility to use multi threading. This helps us to generate more virtual users on load generators. If we set Vuser to run as a process, the same driver program is loaded into memory for each Vuser on load generator, thus taking up a large amount of memory. This limits the number of Vusers that can be run on a single load generator. If we set Vuser to run as a thread, then one instance of the driver program is loaded into the memory and will be used by multiple vusers depending upon the vuser type. Each thread shares the memory of the parent driver program, thus enabling more Vusers to be run per generator.