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Remote Services Performance issue ? [message #760522]

Fri, 02 December 2011 16:50

Stéphane ournier

Messages: 304
Registered: July 2009

Senior Member

I have installed ECF 3.5.3 SDK in my Indigo SR1 target platform to test ECF Remote Services.
Hence, I have imported hello examples from ECF 3.5.3 sdk and that runs.

Nevertheless, with standard remote services or DS hello services, the HelloClient code takes a lot of time (15 / 20s) to bind to the remote service Hello (made available by the server).
I tried different discovery protocols : (zeroconf, generic) or (zeroconf,rosgi) but it does not change anything about the time to bind to the remote service.

Hello client and Hello host are running on the same workstation (Windows XP). The remote service is hosted on the localhost. I did not change anything in provided examples.

Does anyone have an idea about this issue ?

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Re: Remote Services Performance issue ? [message #760570 is a reply to message #760522]

Sat, 03 December 2011 02:07

Markus Kuppe

Messages: 177
Registered: July 2009

Senior Member

On 12/02/2011 08:50 AM, St wrote:
> I have installed ECF 3.5.3 SDK in my Indigo SR1 target platform to test
> ECF Remote Services.
> Hence, I have imported hello examples from ECF 3.5.3 sdk and that runs.
>
> Nevertheless, with standard remote services or DS hello services, the
> HelloClient code takes a lot of time (15 / 20s) to bind to the remote
> service Hello (made available by the server).
> I tried different discovery protocols : (zeroconf, generic) or
> (zeroconf,rosgi) but it does not change anything about the time to bind
> to the remote service.
>
> Hello client and Hello host are running on the same workstation (Windows
> XP). The remote service is hosted on the localhost. I did not change
> anything in provided examples.
>
> Does anyone have an idea about this issue ?

Do I understand this correctly. It's not the performance of an
invocation of a remote service, but the performance of discovery to find
a service?

Markus

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Re: Remote Services Performance issue ? [message #760770 is a reply to message #760570]

Mon, 05 December 2011 08:44

Stéphane ournier

Messages: 304
Registered: July 2009

Senior Member

Quote:

Do I understand this correctly. It's not the performance of an
invocation of a remote service, but the performance of discovery to find
a service?

Markus

Hi Markus,
You are right. I ran others tests with zookeeper discovery protocol and the issue is solved. Hence, it is linked to zeroconf protocol configuration.
Do you have an idea where I can find more details about the different discovery protocols configuration ?

Stephane.

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Re: Remote Services Performance issue ? [message #761056 is a reply to message #760770]

Mon, 05 December 2011 20:30

Markus Kuppe

Messages: 177
Registered: July 2009

Senior Member

On 12/05/2011 12:44 AM, St wrote:

> Hi Markus,
> You are right. I ran others tests with zookeeper discovery protocol and
> the issue is solved. Hence, it is linked to zeroconf protocol
> configuration.
> Do you have an idea where I can find more details about the different
> discovery protocols configuration ?

Hi Stephane,

zeroconf/mdns, like e.g. DNS-SD or SLP are standard-based protocols. You
find the corresponding specification on the web.

ECF discovery just wraps various standards and provides a generic API.

Markus

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