Open Stack

Why not update to a newer release? Such as Oracle Linux 8?

On Fri, Sep 30, 2022 at 7:50 AM Quang Long <longsube at gmail.com> wrote:

> Hi Openstack-users,
>
> I am having a problem with I/O performance on VM running Oracle Linux 6,
> I/O throughput on VM Oracle Linux 6 is much lower than VM using another OS
> (Ubuntu, CentOS).
>
> - VM Oracle Linux 6: throughput 40 MBps
> https://prnt.sc/buKscX_qEtcF
>
> - Other VM: throughput 113 MBps
> https://prnt.sc/IRhBUPrGgLOy
>
> - Test tool:
>  dd bs=1M count=1024 if=/dev/zero of=test conv=fdatasync; rm -f test
>
>
> My Enviroment:
> - Openstack: Ussuri
> - Ceph: Octopus 15.2.8
> - Compute: CentOS8_x86_64, kernel: 4.18.0-240.15.1.el8_3.x86_64
> - KVM: qemu-kvm-5.2.0-16.el8.x86_64
> - VM Oracle linux6: kernel-uek-4.1.12-124.42.3.el6uek.x86_64
>
> I think because the kernel of Oracle Linux 6 is too old, maybe an older
> KVM version could support it, and now KVM does not optimize for this OS.
>
> Could you guy can help me with this?
>
> --
>
> *Lê Quang Long*
>
> 0942.533.683 | 0977.116.502
>
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