Recent content by freeman1doma

Thx, And I will do that.

Any news about this bug? I also have VM with freebsd 9.3 and will plan move to pve 6.2

True Done, thanks. As I see align must be in all level of system (ege block devices, vdev, zvol, vm's etc) Thank you for these important comments, and yes - it will be VM's with MariaDB (InnoDB engine) . All last tests was with ashift=13 on nvme pool. ~# zpool get all | grep ashift rpool...

Thnx, I was change default recordsize to 16K and have double penalty to performance randwrite Its very important for my VM's with DB's. Last question. Can I improve performance of my zpool nvme's mirror, if will add SLOG vdev as sata ssd? Or, I'll just have intact dirty data after power loss...

That's normal results 4,5 KIOPS for nvme in zfs mirror at 4k randwrite workloads? Specs says it must be 21 KIOPS. Can you turn me to right way in tweaking zfs for better randwrite 4k? And my pveperf fsyncs on sata ssd zfs mirror very low (356). ZFS root was installed by default from official...

Thanks. Fio with direct and sync Compare to zfs mirror on two sata ssd, where OS installed(sync+direct): # pveversion pve-manager/6.2-4/9824574a (running kernel: 5.4.41-1-pve) # pveperf CPU BOGOMIPS: 319387.52 REGEX/SECOND: 3132034 HD SIZE: 192.77 GB (rpool/ROOT/pve-1)...

I have hetzner AX61 server 2x sata ssd 240Gb for OS (zfs raid-1 uefi boot) 2x toshiba nvme u.2 KXD51RUE3T84 3.84Tb (for data) Test with fio data pool ZFS RAID-1 zfs pool ashift=12, atime=off, compression=off Why so huge difference between this results? 42MB/s and 306MB/s... Even...

Why you dont share your solution here?

On windows vm CPU always 100% in use when fio is running (tasmanager) On debian vm CPU jumping from 35 to 55% (vm top) On host CPU jumping from 30 to 100% between fio and z_wr_iss (saw in top)

Without size fio cannot start on Windows VM: 4K-Q1T1-Rand-Write: you need to specify size= fio: pid=0, err=22/file:filesetup.c:1007, func=total_file_size, error=Invalid argument I set size=1G in your fio conf for Win VM, on host all rigt without size. And what i was get on single intel ssd on...

Thank, I'll retest it like you said. Can you post your full fio.config for this tests (host and vm)?

Thanks, waiting for it. Can the bottleneck be that the system is installed on the hard drive? All tests I made VMs was located on SSD storage, but OS PVE instaled on hdd hardware raid1.

Thnk for reply. Yes, I tried different state with vm disk (writeback, no cache, write trough, direct sync) the best performance in writeback mode, with nocache random read and write lower at twice then writeback I tried also some virto scisi drivers for win (the last and stable from fedora...

The most problem its why I cannot reach such speeds in VM like on host pve?

On LVM the same identical speeds and performance like on ext4.