On Mon, Aug 6, 2018 at 10:17 PM, Jayme wrote:
> Just wanted to comment on this again. Today I rebuilt my oVirt environment
> as I wanted to change disk/volume layout one final time before making use
> of the cluster. I downloaded the most recent oVirt node image linked off
> the ovirt site and
rs.
>
> Ovirt Devs, if you’ve made the default optimized setting or cockpit setup
> 8/1, I think you’re doing most folk a dis-service unless they have
> massive servers..
>
> ------
> *From:* Jayme
> *Subject:* Re: [ovirt-users] Tuning and tes
servers..
> From: Jayme
> Subject: Re: [ovirt-users] Tuning and testing GlusterFS performance
> Date: August 5, 2018 at 2:21:00 PM EDT
> To: William Dossett
> Cc: Darrell Budic; users
>
> I can't imagine too many probs with such a minor update I've been doing
> updates o
t, but this is feeling much more like a finished product than
> it used to.
>
>
>
> Regards
>
> Bill
>
>
>
>
>
> *From:* Jayme
> *Sent:* Sunday, August 5, 2018 10:18 AM
> *To:* William Dossett
> *Cc:* Darrell Budic ; users
> *Subject:* Re: [ovirt-u
has failed me in the
past, but this is feeling much more like a finished product than it used to.
Regards
Bill
From: Jayme
Sent: Sunday, August 5, 2018 10:18 AM
To: William Dossett
Cc: Darrell Budic ; users
Subject: Re: [ovirt-users] Tuning and testing GlusterFS performance
I'm
l Budic
> *Cc:* William Dossett ; users
> *Subject:* Re: [ovirt-users] Tuning and testing GlusterFS performance
>
>
>
> I would have to assume so because I have not manually modified any gluster
> volume settings after performing gdeploy via cockpit. What would you
> re
I think Percs have queue depth of 31 if that’s of any help… fairly common with
that level of controller.
From: Jayme
Sent: Sunday, August 5, 2018 9:50 AM
To: Darrell Budic
Cc: William Dossett ; users
Subject: Re: [ovirt-users] Tuning and testing GlusterFS performance
I would have
e are WAY too high and will degrade performance to
> the point of causing problems on decently used volumes during a heal. If
> these are being set by the HCI installer, I’d recommend changing them.
>
>
> --
> *From:* Jayme
> *Subject:* [ovirt-users] Re: T
them.
> From: Jayme
> Subject: [ovirt-users] Re: Tuning and testing GlusterFS performance
> Date: August 4, 2018 at 10:31:30 AM EDT
> To: William Dossett
> Cc: users
>
> Yes the volume options can be changed on the fly post creation no problem.
> Good luck!
>
>
eation.
>
>
>
> Thanks again
>
> Bill
>
>
>
>
>
> *From:* Jayme
> *Sent:* Thursday, August 2, 2018 5:56 PM
> *To:* William Dossett
> *Cc:* users
> *Subject:* Re: [ovirt-users] Tuning and testing GlusterFS performance
>
>
>
> Bill,
>
>
&g
Interesting… is it doing encryption by default? That could slow it down for
sure…
From: Jayme
Sent: Saturday, August 4, 2018 7:37 AM
To: Sahina Bose
Cc: users
Subject: [ovirt-users] Re: Tuning and testing GlusterFS performance
Scratch that, there are actually a couple subtle changes
Hey, thanks! Good catch! Going to have to take a look at that, will be
working on it this weekend.. hopefully we can do this post creation.
Thanks again
Bill
From: Jayme
Sent: Thursday, August 2, 2018 5:56 PM
To: William Dossett
Cc: users
Subject: Re: [ovirt-users] Tuning
>>>>>
>>>>> Hope this helps!
>>>>>
>>>>> - Jayme
>>>>>
>>>>> On Fri, Aug 3, 2018 at 5:15 AM, Sahina Bose wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>> On Fri
solved by
>>>>>> clicking "optimize for virt store" option in the volume settings of the
>>>>>> hosted engine (for the data volume). Doing this one change has increased
>>>>>> my I/O performance by 10x alone. I don't know why this would not be set
>>>>&
ume
>>>> for use - if it was using the Cockpit deployment UI, the volume options
>>>> would have been set by default.
>>>>
>>>>
>>>>> - James
>>>>>
>>>>> On Thu, Aug 2, 2018 at 2:32 PM, William Dossett <
>>>>> william.doss...@gmail.
pany
>>>>> frowns on us getting good deals for equipment on ebay and would rather go
>>>>> to their preferred supplier – where $500 wouldn’t even buy half a 10Gb CNA
>>>>> ☹ but I believe in this project and it feels like it is getting
>>>>>
pplier – where $500 wouldn’t even buy half a 10Gb CNA
>>>> ☹ but I believe in this project and it feels like it is getting ready
>>>> for showtime – if I can demo this in a few weeks and get some interest I’ll
>>>> be asking them to reimburse me, that’s for sure!
t; this later this afternoon, will let you know any findings.
>>>
>>>
>>>
>>> Regards
>>>
>>> Bill
>>>
>>>
>>>
>>>
>>>
>>> *From:* Jayme
>>> *Sent:* Thursday, August 2, 2018 11:07 A
eimburse me, that’s for sure!
>>
>>
>>
>> Hopefully going to get some of the other work off my plate and work on
>> this later this afternoon, will let you know any findings.
>>
>>
>>
>> Regards
>>
>> Bill
>>
>>
>>
er this afternoon, will let you know any findings.
>
>
>
> Regards
>
> Bill
>
>
>
>
>
> *From:* Jayme
> *Sent:* Thursday, August 2, 2018 11:07 AM
> *To:* William Dossett
> *Cc:* users
> *Subject:* Re: [ovirt-users] Tuning and testing GlusterFS perfo
some of the other work off my plate and work on this
later this afternoon, will let you know any findings.
Regards
Bill
From: Jayme
Sent: Thursday, August 2, 2018 11:07 AM
To: William Dossett
Cc: users
Subject: Re: [ovirt-users] Tuning and testing GlusterFS performance
Bill
Bill,
Appreciate the feedback and would be interested to hear some of your
results. I'm a bit worried about what i'm seeing so far on a very stock 3
node HCI setup. 8mb/sec on that dd test mentioned in the original post
from within a VM (which may be explained by bad testing methods or some
I usually look at IOPs using IOMeter… you usually want several workers running
reads and writes in different threads at the same time. You can run Dynamo on
a Linux instance and then connect it to a window GUI running IOMeter to give
you stats. I was getting around 250 IOPs on JBOD sata
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