Mixed workload test results
A series of mixed workload tests were run (online users plus CMDB CI processing) to determine the hardware requirements for each tier of BMC Remedy with Smart IT. A total of 1000 online concurrent users (200 per tenant) plus 7,500 CIs were processed (90% update and 10% create) during the load test. Smart IT and BMC MyIT accounted for 80% of the online business transactions run; the remaining 20% were from BMC Remedy IT Service Management (ITSM).
Sizing and scalability
The results show that one Smart IT server CPU can support approximately 200 concurrent users. The results also show that the AR 9.0 System server is the most used tier, and each AR System 9.0 server can scale to approximately 300 concurrent users. Each AR System 9.0 server CPU can support approximately 80 Smart IT users or 150 BMC Remedy ITSM users. The CPU utilization on MongoDB, Chart Server, BMC Remedy Mid Tier, and the BMC Atrium Single Sign-On server was minimal.
- These sizing estimates should be used as a starting point. You should conduct benchmarks in your environment, because sizing will vary depending on the specific workload mix, data volumes, and data composition.
- You must apply BMC Remedy with Smart IT 1.2 Patch 001 to your environment to achieve these results. For more information, see 1.2.00.001: Patch 1.
Response times and server resource utilization
The charts in this section show end user response times, CPU usage, and memory usage. The end user client machine was set to 100 ms latency.
The following chart shows the end user browser response times for Smart IT transactions measured during the 1000-user load test:
The following chart shows the end user iOS response times for Smart IT transactions measured during the 1000-user load test. The Wi-Fi connection had approximately 65 ms of latency.
The following chart shows the end user iOS response times for BMC MyIT transactions measured during the 1000-user load test. The Wi-Fi connection had approximately 65 ms of latency.
A 1500-user test was also conducted to show the scalability of Smart IT. The following chart shows the average CPU percentage for each tier used in the tests.
The following chart shows the average available memory for each tier used in the tests.