How to monitor CPU or memory usage on a per-user basis

Issue

Need a way to determine what percentage of the CPUs and memory (RAM) each user is utilizing. Ideally, would like to have a command that printed something like the following.
```
user1 13% of total cpu usage, 25% of total ram
user2 22% of total cpu usage, 2% of total ram
```
Is there any command to fetch proportional set size of memory per user basis?

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Here are the common uses of Markdown.

Code blocks

~~~
Code surrounded in tildes is easier to read
~~~

Links/URLs

[Red Hat Customer Portal](https://access.redhat.com)