Select Connection: INPUT[inlineListSuggester(optionQuery(#permanent_note), optionQuery(#literature_note), optionQuery(#fleeting_note)):connections]
Scalability is the term we use to describe a system’s ability to cope with increased load
How to determine scalability?
- Describe Load. Load can be described with a few numbers called load parameters, which depend on the system’s architecture.
- Describe Performance. two ways to see it:
- increase a load parameter and keep the system resources unchanged, how is performance
- increase a load parameter, how much do you need to increase resources if you want to keep performance unchanged Use percentiles, not mean. For the dashboard, keep a rolling window of response times in the last 10 minutes. Every minute, calculate the median and various percentiles. Averaging percentiles is mathematically meaningless