topic Re: CPU used/total in Dashboarding

CPU used/total

gbaudart — Wed, 22 Jan 2025 14:21:17 GMT

Hi Community,

For one of my clients, I need to create a dashboard to monitor which servers are underutilised.

To do this, I visualise the memory usage (min, avg, p90, max).

I added Memory Used and Memory Total to monitor the real impact/affectation.

I made another tile with the CPU usage.

It's ok for this party, but I didn't find how to display an equivalent metric/information of memory used/total (for the CPU).

The idea is to have a symmetric view between memory and CPU.

I'm not sure if it's possible in the Data Explorer view, but I ask you just in case.

FYI, it's a Dynatrace Managed, so we don't have the Grail 😞

Thanks,

AntonioSousa — Wed, 22 Jan 2025 16:13:35 GMT

@gbaudart,
Is the idea to get both information (CPU & memory) in the same tile?

gbaudart — Wed, 22 Jan 2025 16:18:15 GMT

No, one tile for Memory et one tile for CPU, but with the same data's model (same number of columns)

AntonioSousa — Wed, 22 Jan 2025 16:47:57 GMT

Now I believe I understand better your question 😊

While Memory has an absolute value (amount of RAM being used) and a relative percentual value, CPU does not.

Typically, nowadays, we only have the CPU percentage. In absolute terms, you would have something like MIPs or another metric of CPU "capacity".

It is an important issue that does really impact Observability analysis, and not directly related to this, I raised a similar thing in the following Product Idea:
https://community.dynatrace.com/t5/Product-ideas/Expose-CPU-architecture-in-the-UI/idi-p/263467

AntonioSousa — Wed, 05 Mar 2025 21:49:57 GMT

It turns out that if your servers are running on VMware, you can get this through the MHz metric.
Take a look at: https://community.dynatrace.com/t5/Open-Q-A/host-cpu-usage-versus-physical-cpu-or-vm-cpu-usage/td-p/249304