[ovirt-users] Has meltdown impacted glusterFS performance?

Yaniv Kaul ykaul at redhat.com
Sat Jan 27 11:42:29 UTC 2018


On Jan 26, 2018 7:52 PM, "Arman Khalatyan" <arm2arm at gmail.com> wrote:

I believe about 50% overhead or even  more...


Where are you getting these numbers from?
We've seen much lower numbers.

It is processor dependent, so newer are less affected as older CPUs.
Also, keep in mimd that additional patches are expected that will bring
back some of the performance.
Y.



Am 26.01.2018 7:40 nachm. schrieb "Christopher Cox" <ccox at endlessnow.com>:

> Does it matter?  This is just one of those required things.  IMHO, most
> companies know there will be impact, and I would think they would accept
> any informational measurement after the fact.
>
> There are probably only a few cases where timing is so limited to where a
> skew would matter.
>
> Just saying...
>
>
> On 01/26/2018 11:48 AM, Jayme wrote:
>
>> I've been considering hyperconverged oVirt setup VS san/nas but I wonder
>> how the meltdown patches have affected glusterFS performance since it is
>> CPU intensive.  Has anyone who has applied recent kernel updates noticed a
>> performance drop with glusterFS?
>>
>>
>>
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