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 KVM Poor Disk 4K Performance with Windows. (7 Replies, Read 36399 times)
xeonnet
Posted on # December 9, 2022, 1:15 am
Group: Member
Post Group: Newbie
Posts: 1
Status:
I'm using Windows Server 2019 with KVM.
using LVM SSD Storage.

1q/1t 4K Performance is 4MB/s ~ 5MB/s
32/q1t 4K Performance is 10MB/s ~ 11MB/s

How can i fix this issue?

tested with Virtio, SCSI, No Cache, Default I/O Policy
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KVM Poor Disk 4K Performance with Windows.
moriahroot
Posted on # January 5, 2023, 1:54 am | Post: 1
Group: Member
Post Group: Newbie
Posts: 1
Status:
same for me, I get error

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...
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KVM Poor Disk 4K Performance with Windows.
kefirchikus
Posted on # April 27, 2023, 3:44 pm | Post: 2
Group: Member
Post Group: Newbie
Posts: 3
Status:
same problem
IP: --   

KVM Poor Disk 4K Performance with Windows.
kefirchikus
Posted on # April 27, 2023, 6:49 pm | Post: 3
Group: Member
Post Group: Newbie
Posts: 3
Status:
Same problem.

KVM node with LVM NVMe in PCIex4 2TB Samsung RED without RAID and tested on all settings in panel.

Please. help
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KVM Poor Disk 4K Performance with Windows.
kefirchikus
Posted on # April 27, 2023, 6:50 pm | Post: 4
Group: Member
Post Group: Newbie
Posts: 3
Status:
Same problem.

KVM node with LVM NVMe in PCIex4 2TB Samsung RED without RAID and tested on all settings in panel.
https://ibb.co/319WRvk

Please. help
IP: --   

KVM Poor Disk 4K Performance with Windows.
shaifulhafizal
Posted on # June 29, 2023, 6:23 pm | Post: 5
Group: Member
Post Group: Newbie
Posts: 2
Status:
test on windows 2019 vm, setup vioscsi\2k19\amd64running node kvm lvm enterprise ssdstorage setting LVM & RAW
setting Disk Caching writeback          I/O Policy threads
AS SSD Benchmark 2.0.7316.34247
------------------------------
Name: Red Hat VirtIO SCSI Disk Device
Firmware: 0001
Controller: viostor
Offset: 563200 K - OK
Size: 50.00 GB
Date: 6/29/2023 6:22:52 PM
------------------------------
Sequential:
------------------------------
Read: 4894.15 MB/s
Write: 2957.15 MB/s
------------------------------
4K:
------------------------------
Read: 96.04 MB/s
Write: 25.09 MB/s
------------------------------
4K-64Threads:
------------------------------
Read: 188.44 MB/s
Write: 64.26 MB/s
------------------------------
Score:
------------------------------
Read: 774
Write: 385
Total: 1497
------------------------------



                       
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KVM Poor Disk 4K Performance with Windows.
jevingala
Posted on # June 30, 2023, 10:51 am | Post: 6
Group: Virtualizor Team
Post Group: Super Member
Posts: 773
Status:
Hi,

The VPS Disk is made of 512 bytes sector size hence 4k performance would be lower.
This would be supported soon to improve the 4k performance.

-----------------------
Regards,
Virtualizor Team.
http://virtualizor.com/
IP: --   

KVM Poor Disk 4K Performance with Windows.
enunciateabcd
Posted on # July 5, 2023, 4:18 am | Post: 7
Group: Member
Post Group: Newbie
Posts: 5
Status:
it is important to ensure your business is operating within its proper zone.
free games
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