Hi Rob,
Thanks for replying, So I have created the new node for sprout and vellum
(4GB RAM, 2CPUs) and added them to the existing deployment, but still there
is a same problem i face as earlier that no. of call per sec is not
increasing. When i am trying to increase them using multiplier it start
giving errors like 503, 401. time out. overloading etc.
SO according to you what will be the problem and how can i fix that.

As you are saying:

*– to increase the calls per second independently of registration rate,
you’d need to edit the script *

*What would i need to change, can u please tell me it would be great help.
I will appreciate that.*

Thanks in advance
Sunil

On Tue, Apr 3, 2018 at 10:13 PM, Robert Day <[email protected]>
wrote:

> Hi Sunil,
>
>
>
> Answering your questions in order:
>
>
>
>    1. We don’t have fixed performance figures for Project Clearwater (as
>    opposed to our Clearwater Core product) – we just provide the tools to let
>    the community do their own performance testing and analysis. This is partly
>    because hardware varies so much (CPU architecture, speed, etc.) that it’s
>    difficult to give precise figures.
>    2. When using the run_stress script, each emulated subscriber
>    generates 1.3 calls/second (50% incoming, 50% outgoing). This can be
>    increased with the ‘multiplier’ option (e.g. --multiplier 10 means 13
>    calls/second), but this also increases the registration rate – to increase
>    the calls per second independently of registration rate, you’d need to edit
>    the script.
>    3. Call success depends on the stress node and all of Sprout, Dime and
>    Vellum. http://www.projectclearwater.org/technical/call-flows/ has
>    more information on how they all get involved in call flows.
>    4. It’s difficult to predict exactly where the bottlenecks would be,
>    but in general, the Sprout node does the most work (and so either it will
>    be the bottleneck or you’ll use more Sprout nodes than other nodes).
>    Different configurations will affect this a lot, though – if using
>    homestead-prov rather than a HSS, the Cassandra database on Vellum will be
>    doing more work, and if using Rf billing, the Dime node will be doing more
>    work.
>    5. I don’t think we’ve tested a maximum value for --multiplier. My
>    guess would be that it starts to break down if calls/registrations are
>    happening faster than once per second per subscriber – so 100 might be OK
>    but 2000 probably wouldn’t be.
>    6. Going up to 2 vCPUs and 4GB RAM on each node would be sensible, but
>    past that point we’d recommend increasing the number of nodes instead –
>    Clearwater is primarily architected to scale that way.
>    7. Our default throttling options should be well-tuned for most
>    workloads – you shouldn’t need to change them.
>
>
>
> Hope that helps!
>
>
>
> Best,
>
> Rob
>
>
>
> *From:* Clearwater [mailto:[email protected]]
> *On Behalf Of *Sunil Kumar
> *Sent:* 29 March 2018 15:06
> *To:* [email protected]
> *Subject:* [Project Clearwater] Stress Testing Queries
>
>
>
> Hi all,
>
>
>
> I want to increase the # of calls per seconds. Please help me out. I have
> few doubt Please reply:
>
>
>
> 1) *How many max calls per sec can be make* using 1 vCPU and 2 GB RAM, 10
> GB HDD, manual setup with stress test.
>
>
>
> 2)* How can i increase the no. of calls per sec*, Is there any specific
> parameter for that or Do I need to change in script (run_stress) or
> anywhere else please let me know.
>
>
>
> 3) I am using the stress node for making calls, I want to ask, *On which
> nodes the calls or stress test is depends other than sprout and stress node*.
> I have created the subscribers on vellum node.
>
>
>
> 4) *# of calls is limited by stress node or sprout node or any other
> node?*
>
>
>
> 5) *What is the maximum limitation of --multiplier*, i have checked up to
> 20 only?
>
>
>
> 6) *Should I increase the CPUs, RAM and HDD on single node or Do I create
> new node for larger deployments* (multiple nodes), which is better way?
>
>
>
> 7) I have not use any* throttling options *yet. Do I need to use them, if
> yes please let me know which for increasing the CPS, how can i use (just
> mentioned in shared_config?)
>
>
>
> Please reply, i am waiting for it eagerly. *Thanks in advance.*
>
>
>
> Regards,
>
> suni
>
>
>
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>
>
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