Hi Seb,

I'm just wondering if you did indeed think there was a problem re. how we've 
configured OM looking at our stress-test results?

Thank you!
Sam & doug


On 1 Sep 2014, at 17:01, Sam Naef <[email protected]> wrote:

> Hi Seb, 
> 
> Please see below & let me know if I can help at all
> 
> 
>> On 1 Sep 2014, at 09:03, [email protected] wrote:
>> 
>>> Can you give some more details on the test?
>> of course - i'll try my best, I am not a programmer but if you know where I 
>> can locate more deets please let me know.
>> Here is a link to the stress-test vid:https://vimeo.com/104936979 (you might 
>> have to wait before the video is processed)
>> 
>> 
>>> I am not sure if I understand this correctly.
>>> All of those CPU usage is server side only right?
>> correct
>>> And the server is only doing OpenMeetings, you do not run the client and
>>> server on the same machine?
>>> 
>> Correct, clients are mostly UK based, each running one OM window each. 
>> (However all 15 users were using the same login..)
>> 
>>> Why would the video streaming take so much CPU power? Red5 should not do
>>> any kind of transcoding. We have done experiments in the past with 100
>>> browsers connected. Obviously each browser run on its own pc/device. Not in
>>> multiple tabs. Otherwise you have glitches in your stream, but he reason
>>> for that is that the clients are running out of CPU, not the server.
>>> 
>>> So this is kind of confusing, maybe you should clarify.
>>> 
>>> Or is that an issue that is introduced since we updated to later version of
>>> red5?
>>> 
>>> Thanks,
>>> Sebastian
>>> On Sep 1, 2014 6:56 AM, "Maxim Solodovnik" <[email protected]> wrote:
>>> 
>>>> you can do "external" load balancing or use OM cluster
>>>> http://openmeetings.apache.org/Clustering.html
>>>> 
>>>> 
>>>> On 1 September 2014 01:53, Sam Naef <[email protected]> wrote:
>>>> 
>>>>> ah!
>>>>> That could be it then :)
>>>>> Ok so my results seem to be consistent it seems.
>>>>> 
>>>>> The idea for us is to perhaps have multiple servers and do some kind of
>>>>> load-balancing to direct users to a free server (so that we can scale
>>>>> usage).
>>>>> We're going to test, but hopefully multiple servers of 1core2GB should
>>>>> hopefully work as it seems that processing power is what OM needs
>>>>> 
>>>>> thanks
>>>>> Sam & Doug
>>>>> 
>>>>> +44 7707575060
>>>>> iSKILLu founder
>>>>> Facebook
>>>>> Twitter
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> On 31 Aug 2014, at 19:32, Maxim Solodovnik <[email protected]> wrote:
>>>>> 
>>>>>> 1 room
>>>>>> 8cores, 18GB RAM
>>>>>> 
>>>>>> 
>>>>>> On 1 September 2014 01:26, Sam Naef <[email protected]> wrote:
>>>>>> 
>>>>>>> yes it's version OM 3.0.3
>>>>>>> 
>>>>>>> When I test using multiple tabs on my browser, my computer can't hack
>>>>> more
>>>>>>> than about 4 tabs (tho i have fast mid 2012 macbook air)
>>>>>>> 
>>>>>>> - were all your 20 users in the same room?
>>>>>>> Should 2 cores & 4GB be working for 20 sim. users then?
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> +44 7707575060
>>>>>>> iSKILLu founder
>>>>>>> Facebook
>>>>>>> Twitter
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> On 31 Aug 2014, at 15:26, Maxim Solodovnik <[email protected]>
>>>>> wrote:
>>>>>>> 
>>>>>>>> What version of OM have you tested?
>>>>>>>> we were able to have room with ~20video users (simulated by multiple
>>>>>>>> browsers tabs)
>>>>>>>> I believe 3.0.3 latest version should work better than 3.0.2
>>>>>>>> 
>>>>>>>> 
>>>>>>>> On 31 August 2014 20:35, Sam Naef <[email protected]> wrote:
>>>>>>>> 
>>>>>>>>> Hi Maxim et all,
>>>>>>>>> 
>>>>>>>>> We have just carried out our first largeish user test of OM :)
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> Here are our results:
>>>>>>>>> We are using 2 cores, 4GB ram vps
>>>>>>>>> 
>>>>>>>>> Users in the same room, we were able to get:
>>>>>>>>> 7vids, 9 people+audio
>>>>>>>>> 50-70% processers usage
>>>>>>>>> mostly OK
>>>>>>>>> 
>>>>>>>>> 9 vids, 15 people +audio
>>>>>>>>> 90% of processors usage
>>>>>>>>> massive glitching
>>>>>>>>> 
>>>>>>>>> Users in different rooms:
>>>>>>>>> When we compared 6 people in the same room to 3 rooms of 2 each, the
>>>>>>>>> processing usage dropped by 50% (i think this is expected as less
>>>>>>> bandwidth
>>>>>>>>> is being sent?)
>>>>>>>>> 
>>>>>>>>> I'm also guessing that you don't have a program that replicates a
>>>>>>>>> stress-test by any chance…?
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> Kindest regards!
>>>>>>>>> Sam & Doug
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> --
>>>>>>>> WBR
>>>>>>>> Maxim aka solomax
>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> --
>>>>>> WBR
>>>>>> Maxim aka solomax
>>>>> 
>>>>> 
>>>> 
>>>> 
>>>> --
>>>> WBR
>>>> Maxim aka solomax
>>>> 
>> 
> 

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