[ovirt-users] New post on oVirt blog: Introducing High Performance Virtual Machines

[Yaniv Kaul]

On Tue, Oct 31, 2017 at 2:25 PM, FERNANDO FREDIANI <
fernando.frediani at upx.com> wrote:

> Hi.
> Does the virtualization layer causes any significant impact in the VM
> performance, even a high CPU VM that justify the use of this feature ?
>

Depends on your definition of 'significant' and on the workload. Certainly
enabling huge pages, NUMA setting and removal of some unneeded devices can
help some workloads.


>
> DPDK for sure is a fantastic feature for networking environments.
>

A bit over-rated, for most workloads, if you ask me...
Currently requires a bit too much configuration (in my opinion), but
certainly there are workloads who critically need it.
Y.


>
>
> Fernando
>
>
> On 31/10/2017 05:56, Yaniv Kaul wrote:
>
>
>
> On Mon, Oct 30, 2017 at 9:33 PM, Vinícius Ferrão <ferrao at if.ufrj.br>
> wrote:
>
>> Hello John,
>>
>> This is very interesting news for HPC guys. Accordingly to the blog post
>> there's a new “CPU passthrough” function. Which is interesting.
>>
>> Do you guys are targeting which market? I’m looking forward for virtual
>> nodes on a HPC environment.
>>
>
> Any intensive workload, CPU and memory bound especially, would benefit
> from the configuration.
> In memory DBs (SAP Hana, Redis and friends) for example, MapReduce
> (Hadoop), etc.
>
> For some workloads, low latency networking is also important (especially
> for nodes inter-communication) and we are looking at DPDK for it. See[1].
>
> Y.
>
> [1] https://www.ovirt.org/blog/2017/09/ovs-dpdk/
>
>
>> Thanks,
>> V.
>>
>> On 30 Oct 2017, at 07:38, John Marks <jmarks at redhat.com> wrote:
>>
>> Hello!
>> Just a quick heads up that there is a new post on the oVirt blog:
>>
>> Introducing High Performance Virtual Machines
>> <https://ovirt.org/blog/2017/10/introducing-high-performance-vms/>
>>
>> In a nutshell:
>>
>> oVirt 4.2.0 Alpha, released on September 28, features a new high
>> performance virtual machine type. It brings VM performance closer to bare
>> metal performance. Read the blog post.
>> <https://ovirt.org/blog/2017/10/introducing-high-performance-vms/>
>>
>> See you on the oVirt blog!
>>
>> Best,
>>
>> John
>> --
>> John Marks
>> Technical Writer, oVirt
>> redhat Israel
>> Cell: +972 52 8644 491
>>
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>
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