I'm running a Remote Desktop Services (RDS) farm with 4 Windows Server 2025 servers, along with a Domain Controller and an RDS Gateway server. However, I've noticed that the performance isn't as smooth as it was with Windows Server 2019. Each RDS server has 6 CPU cores and 40 GB of RAM, supporting a total of 30 users. We're using FSLogix profile containers, but everything seems a bit sluggish—opening files such as PDFs, Excel documents, and Outlook is not as responsive as expected. Despite checking performance metrics in the monitors and Zabbix, I can't pinpoint the issue. The underlying setup consists of two Hyper-V hosts, each with 16 cores (32 logical cores) and 256 GB of RAM. Does anyone have tips or tricks to enhance the responsiveness of Windows Server 2025?
4 Answers
What kind of storage are you using? Performance can drop if you're on slower disks. We've had success running more cores and RAM for our RDS instances; it might be something to consider if your budget allows.
First, make sure your BIOS is set to performance mode. It's easy to overlook, but if it's set to performance per watt, that could cause issues. Also, consider checking your storage setup—FSLogix really benefits from high throughput storage. Given the specs, 6 cores for 30 users sounds a bit low; you might want to optimize your resources.
I noticed that Windows Server 2025 can feel heavier on the UI than 2019. Ensure you've updated the virtual hardware version for your VMs since migrating to 2025, as newer versions improve handling of memory and processor scheduling. Check your antivirus too; if it's constantly scanning FSLogix VHDX containers, it could lead to lag in file access. Disabling transparency and animations might help as well.
Honestly, we've faced similar frustrations moving from 2019 to 2025. We found that even increasing resources didn't help significantly. After trying out 2022 with the same resources as 2019, the performance was much better! It’s worth considering a rollback or testing different configurations.
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