topic Re: How Dynatrace get hardware resource metrics? in Open Q&A

How Dynatrace get hardware resource metrics?

nkobayashi1 — Tue, 16 Jan 2018 09:25:54 GMT

Hi all,

Could you tell me how Dynatrace get usage metrics of CPU and memory of each process?
I need the information for both of Linux and Windows.

Our customer wants this information.
But I could not find in the document.

Best Regards,
Noah

Re: How Dynatrace get hardware resource metrics?

Lukasz_Wrona — Thu, 18 Jan 2018 09:51:04 GMT

On Linux per process metrics are read from /proc/ (/proc/<pid>/stat and /proc/<pid>/status here)

On Windows it is calculated based on WinAPI calls (GetProcessTimes() andGetProcessMemoryInfo())

Re: How Dynatrace get hardware resource metrics?

nkobayashi1 — Fri, 19 Jan 2018 07:25:51 GMT

Hi,

I have an additional question about this topics.

How Dynatrace get hardware resource metrics per hosts?
Specifically, the CPU and Memory usage in the following screenshot.

Best, Noah

Re: How Dynatrace get hardware resource metrics?

Lukasz_Wrona — Fri, 19 Jan 2018 09:54:32 GMT

The answer is analogous. On Linux from /proc/stat and /proc/meminfo and
on Windows from WinApi calls GetSystemTimes() and GetPerformanceInfo()