Login Enterprise performance testing process and monitoring

Each user load was tested against four runs: a pilot run to validate that the infrastructure was performing properly (and that valid data could be captured), and three subsequent runs to enable data correlation.

During testing, while the environment was under load, the Dell VDI Solutions team logged in to a session and completed tasks that correspond to the user workload. Although this test is subjective, it helps to provide a better understanding of the EUE in the desktop sessions, particularly under high load. This test also helps to ensure reliable data gathering.

The team monitored the following resources to ensure that the user experience was not compromised:

• Compute host servers—Solutions based on VMware vCenter for VMware vSphere gather key data (CPU, memory, disk, and network usage) from each of the compute hosts during each test run. This data is exported to .csv files for single hosts and then consolidated to show data from all hosts. While the report does not include specific performance metrics for the management host servers, these servers are monitored during testing to ensure that they are performing at an expected level with no bottlenecks.
• Hardware resources—Resource overutilization can cause poor EUE. Relevant resource utilization parameters were monitored and compared to relatively conservative thresholds. As shown in the following table, the thresholds were selected based on industry best practices and Dell VDI experience to provide an optimal trade-off between good EUE and cost-per-user, while also allowing sufficient burst capacity for seasonal or intermittent spikes in demand.