performace

I upgraded my cpu from 3900x to 4950x. And now I get screen tearing with my Ubuntu20 guest. I have 128GB ram 60 GB dedicated to this VM. Tried with another VM and have similar problem.

Hi everybody, a while ago we set up a three node Proxmox cluster and as storage backend we use the built in ceph features. After a while we noticed a strong decreasing of I/O Perfomance in the VMs when it comes to writes of small files. Writing a single big file at once seems to perform quit...

Hello all, I am pretty new here and I am building my first ever Homelab to run proxmox. My main use cases will be: - Running development VMs for my personal projects: mainly Backend Development and Machine Learning - A Plex server: I plan to attach my library from a NAS to a VM to keep storage...

Hey everyone, a common question in the forum and to us is which settings are best for storage performance. We took a comprehensive look at performance on PVE 7.2 (kernel=5.15.53-1-pve) with aio=native, aio=io_uring, and iothreads over several weeks of benchmarking on an AMD EPYC system with 100G...

I have a proxmox host with two built in 10G network cards. It is a new install so it isn't doing much, I have a Linux Ubuntu VM and a TrueNAS, netiher in production. I started to test performance on my TrueNAS and noticed it was really slow. 29MB/s on my primary nic (1G), where as testing the...

Hi, till last Wednesday we had a cute high performing litte CEPH cluster running on PVE 6.4. Then i started the upgrade to Octopus as given in https://pve.proxmox.com/wiki/Ceph_Nautilus_to_Octopus. Since we did an online upgrade, we stopped the autoconvert with ceph config set osd...

Hi I've just read this interesting blog article on jrs-s.net (he have a lot of great articles on ZFS by the way) on the topic of qcow2 vs zvol I/O performance. The interesting part was that fine-tuning the qcow2 cluster_size to match the record size ot the underlying zfs dataset could...