What are the recommended system requirements for WSUS?

Question

System administration

Subject. I read the official system requirements "+ 2 gigs of RAM on a windows server". And then he and 8 gigabytes are almost devoured to zero, and four virtual cores (VM on the Hypervisor) go to 100%, after which WSUS naturally goes to lie down and asks to restart itself manually.

Maybe there is some nuance? According to the video on YouTube and according to the manuals on the network, everything should rise along the click. And the server gives this here. Clients also hang for days in "Status: Download - 0%" and the whole system justifies itself as a result only on beautiful pictures on the Internet.
WS 2016 Standard. All updates are installed.

Answer 1

Possible option: your SQL server (called, like, "database engine"), substituted along with WSUS, ran into the limitations of its edition. Look at the sizes of its files, clean up (WSUS) and compress (SQL) if necessary.
Better yet, replace it with a separately installed MS SQL - so you will be able to manage it through the GUI (SSMS).

Answer 2

Something is wrong with you in the Danish kingdom.
Here is a screenshot of the load of a running WSUS server serving 631 servers.

Answer 3

Look at the load on the hypervisor, how many resources other VMs take, how resource reservation is configured for each VM, etc.

Answer 4

Something is clearly not right. In the virtual machine 2008R2, which was compressed to disgrace, in 2.1Gb RAM, it coped quite well with wsus - just give me disk space.

Answer 5

Do not be afraid that Windows ate all your memory. You clearly did not study and were not at Microsoft courses. Memory is freed when needed, just like in Unix-like systems.