Oracle Linux 6 VM volume performance

Quang Long longsube at gmail.com
Fri Sep 30 15:25:33 UTC 2022


My clients need Oracle Linux 6 to maintain their applications.

On Fri, Sep 30, 2022 at 10:20 PM John van Ommen <john.vanommen at gmail.com>
wrote:

> 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
>>
>

-- 

*Lê Quang Long*

0942.533.683 | 0977.116.502
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