Key characteristics describe environmental factors, usage characteristics, and other considerations that are likely to be found in deployments based on this scenario.
The key characteristics for this scenario include:
- User response times : Target user response times for common, uncommon, long-running, and rare operations are listed in the "User response time" table in Plan for software boundaries (Office SharePoint Server) . Some organizations might tolerate slower user response times or might require faster user response times. The expected user response time is a key factor that determines overall throughput targets. Throughput is how many requests the server farm can process per second. When you have more users, you require a higher throughput target to achieve the same user response time.
- User concurrency : A concurrency rate of 10 percent is assumed, with one percent of concurrent users making requests at a given moment. For example, for 10,000 users, 1,000 users are actively using the solution simultaneously, and 100 users are actively making requests.
- Long-running asynchronous tasks : Tasks such as crawling content and backing up databases add a performance load to the server farm. The general performance characteristics of sample topologies assume that these tasks are running during off-peak hours, such as overnight. Thus, user response rates during business hours are not affected.
Estimate performance and capacity requirements for search environments