Perf: Final load testing in k8s and Cloud

[bmtcril]

Once we have a v1 release candidate, we should do a final benchmark / load test for K8s, a ClickHouse Cloud, and Altinity Cloud. This will allow us to have a baseline performance for regression testing and fix any last minute issues.

AC:

• Tests have been run and documented on K8s
• Tests have been run and documented on CH Cloud
• Tests have been run and documented on Altinity

Testing methodolgy:

• Gather a set of chart queries from Superset's "view sql" and store them off.
• Using the xapi-db-load test tool, generate 1B rows in a fresh ClickHouse instance. Document how long it takes to generate.
• Create a spreadsheet documenting performance as below

Superset

• Approx load times for instructor dash with every permutation of filters
• Approx load times for operator dash with every permutation of filters
• Approx load times for each individual chart with every permutation of filters

ClickHouse queries

• Run the saved reporting queries from above using the ClickHouse benchmark command line tool, store the resulting data for each query

[bmtcril]

This has been superseded by the many other performance tasks, closing it out