| Note |
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Please note that the underlying operating system of a single Exec Agent (load injector) can be overloaded if too many concurrent (virtual) users are executed there. In most cases where a system is overloaded, the CPU(s) of the Exec Agent will be constantly at nearly 100% used. In these cases, the measured response times will not be valid because the measuring system itself is overloaded. |
| Tip |
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We recommend that you monitor the CPU consumption of the Exec Agent during the load test and that you use an Exec Agent Cluster, instead of a single Exec Agent when a single system does not have the necessary CPU resources to properly generate the load. The CPU consumption of the load-releasing system depends on the number of users (more users Furthermore, we recommend that you tune the TCP/IP parameters of load releasing systems. |