CPU utilization in microservices-v2021 traces

There are two CPU utilization numbers in the microservices traces:

1. node

|columns | Example Entry |
| ---------- | :-----------: |
| timestamp | 1000 |
| nodeid | ff1fb31957db767c5be4de2855488f128532efc2df0a673c6fa3e7718d10f355 |
| cpu_utilization | 0.7236219289416774 |
| memory_utilization | 0.738378997619996 |

2. MS_Metrics_table

|columns | Example Entry |
| ---------- | :-----------: |
| timestamp | 0 |
| msname | 99f2e7b501f50db9b4089242a5d3e1aba334c32e0c718b8d79281529a9489b15 |
| msinstanceid | 4d1cf65970444ef3ba9870468d7ecf9c17a93782134464767fbdc4aeb6f162eb |
| nodeid | ecd8a876344d673d8e934f566aae38aec05e572d43ab8d58624bd59e3ec43928 |
| cpu_utilization | 0.1299166666654249 |
| memory_utilization | 0.6126489639282227 |

For both of these, what do the utilization numbers mean?

For example, if the utilization is 1, how many cores / CPUs are being utilized? Does it mean the same for both the tables? How many CPUs does a container have in comparison to the full node?

Consider this specific case:

- MS Container has 8 CPUs allocated with utilization 0.5
- It is running on a node that has 16 CPUs

Then does it mean mean the full container is being used? or only 4 CPUs are being used? Is it possible to know the size of the container?

Thanks!

Start by examining the microservices-v2021 trace data and the definitions for the node and MS_Metrics_table cpu_utilization fields. Done means documenting what utilization 1 represents in each table, how container and node CPU capacity relate, and whether container size can be determined from the dataset.

Written by the indexing model from the issue text.