Debian trixie quirks

I've upgraded 3 of the machines in the farm so far and a few quirks I have noticed with trixie when compared with the previous version (bookworm).

1. The swap partition allocated is huge. By default it gave a 48G swap partition on a machine with 64G of memory (approx 75% of memory size).

2. tmpfs is now in memory, which is probably why they made the swap so big. You can set it back to being on disk but anything created in tmpfs will be slower. It will cleanup files in tmpfs if they are in memory. I switched the two machines with 64G of memory to use disk instead of memory as I rarely see anything in tmpfs.

3. The installation failed when I did a machine with only a 512G M.2 SSD. It ran out of disk space during the install. I had to upgrade the machine to a 1G M.2 SSD to install trixie. I was installing mate as a desktop without any additional software. If it made it through I would have removed various packages after the install, but it failed near the end of the installation without any warning so I didn't get a chance. Debian could update the installer or tasksel to check for available space.

 

August 2025

Farm status
CPU only
Running some Milkyway and Einstein work from time to time.

Nvidia GPUs
Off.

Raspberry Pis
Running Einstein@home work.

For more information on the Raspberry Pis see Marks Rpi Cluster

 

Other news

The farm has been running in part for the last year although I haven't posted about it. Mainly its been the Raspberry Pis, with the CPU only machines running from time to time.

I am looking at upgrading the x86 machines. I have a couple of Ryzen 7900X machines to replace the Ryzen 5900X machines ie the CPU only part of the farm, but I am looking at the GPU crunchers now. I generally go for a low-end CPU (maybe a Ryzen 7600X) as its main purpose is to support the GPU. I had a quick look at the GTX-5060 Ti's which seem to have a higher clock speed but 200 or so less Cuda cores than what I have at the moment (GTX-3060 Ti's).

Debian Trixie is about a week or so out from release. While Debian seem to have added support for the Gnome 48 and KDE Plasma 6.3.6 desktops, the Mate desktop is the same one as Debian bookworm despite there being a more up-to-date version of Mate released in Feb 2024.

 

Update: 7th of August

I downloaded the trixie release candidate 2 and installed it on one of the Ryzen 5900X machines. Apart from the wallpaper and apt it looks the same as bookworm. The same installation instructions that I follow for bookworm worked without any changes.

 

9th of June

Farm status
CPU only
Running Rosetta@home work.

Nvidia GPUs
Off. Have been running Asteroids@home and Einstein@home work.

Raspberry Pis
Running Einstein@home work.

For more information on the Raspberry Pis see Marks Rpi Cluster


Other news
Running a mix of either Rosetta work (CPU), Asteroids and Einstein work (GPU). I have been alternating between the CPU machines and the GPU machines.

Still need to find time to assemble the Ryzen 7900's.

19th of May

Farm status
CPU only
Running a mix of Einstein@home and Rosetta@home work when cool enough.

Nvidia GPUs
Off

Raspberry Pis
Running 24/7.

For more information on the Raspberry Pis see Marks Rpi Cluster


Other news
A bit of a cold snap (we're in Autumn at the moment) so I have the CPU only machines crunching away.

I still haven't found the time to build the Ryzen 7900 machines even though I've got all the parts. Work and Chia farming are keeping me rather busy.

I don't have any plans to upgrade the GPU crunchers at the moment. I won't buy a Nvidia 40 series card due to issues with their power connector. They really need to go back to using PCIe connectors.