iothread

  1. bbgeek17

    [TUTORIAL] Deep dive into Storage Controllers and Performance of Windows on Proxmox - Continued

    Hello All, Here's another technote in the Windows on Proxmox series. In Part 4, we quantify and compare IOPS, bandwidth, and latency across all storage controllers and AIO modes under ideal conditions (i.e., "unloaded"), utilizing Windows 2022 running on Proxmox with iSCSI shared block storage...
  2. G

    Workaround for fsfreeze/fsthaw ZFS 2.2 freezing drives with iothread

    Proxmox 8.1.3 (proxmox 8.0.x is working properly in this case) ZFS 2.2.x Snapshot VM with enabled qemu-gest -> frozen drive(s) inside VM (both win and lin) Workarounds: 1. Disable iothread option on the SCSI drives (worse performance) OR 2. "Pause" the VM for the snapshot moment (this will...
  3. D

    I/O trotz ZFS langsam

    Liebe Community, ich hätte eine Frage zur Konfiguration von PVE. Ich habe einen physischen Server mit 2 SATA-SSD´s. Diese haben Lese-/Schreibraten von ca. 500 MB/s. Die Festplatten sind mit SATA 3-Ports mit dem Server verbunden. Ich habe sie bei der Installation von PVE zu einem ZFS-Pool...
  4. C

    [SOLVED] Start VM: iothread is only valid with virtio disk or virtio-scsi-single controller, ignoring

    Hallo, ich erhalte diesen Fehler beim Start einer VM: iothread is only valid with virtio disk or virtio-scsi-single controller, ignoring Dies ist die zugehörige Konfiguration der VM: agent: 1,fstrim_cloned_disks=1 balloon: 0 bios: ovmf boot: order=scsi0;ide2 cores: 4 cpu: kvm64,flags=+aes...
  5. TwiX

    Iothread

    Hi, I just built a new KVM virtual machine, I first decided to put only one vdisk with few partitions (on a RAID10 ZFS pool with fast SSD), one partition for OS and the other for datas (SQL Server databases). I'm wondering if instead of using only one vdisk it could be better to use 2 vdisks...
  6. J

    [SOLVED] Anyone already using "IO Thread" and PVE-Zsync?

    Hey all, Has anyone been using pve-zsync with "IO Thread" on a VirtIO SCSI drive successfully? Any thoughts or feedback before I try it? This would seem to have the best of all worlds - minimally impactful backups + higher performing I/O. Thanks!
  7. mir

    qemu-2.7 iothread

    I thought qemu-2.7 had solved all issues regarding iothread but apparently you are still not able to make a backup if iothread is enabled. Am I missing something?
  8. mir

    pve 4.2 and iothread

    Hi all, I have done some IO tests on proxmox 4.2 with iothread. Results below: fio --description="Emulation of Intel IOmeter File Server Access Pattern" --name=iometer --bssplit=512/10:1k/5:2k/5:4k/60:8k/2:16k/4:32k/4:64k/10 --rw=randrw --rwmixread=80 --direct=1 --size=4g --ioengine=libaio...
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