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Docshare slow? [message #623960] Tue, 08 July 2008 11:15 Go to next message
Benjamin Zeiss is currently offline Benjamin Zeiss
Messages: 29
Registered: July 2009
Junior Member
Hello everyone,

i was just playing around with the docshare plugin and made it work
after making myself a little familiar with ECF. However, it is kind of
slow. I am using a public jabber server (jabber.scha.de) in Germany and
i have a very speedy university connection. Currently, i am testing
collaborative editing with myself using a virtual machine and have to
wait roughly two seconds for each changed character. Having watched the
available screencast, this is obviously supposed to be quicker. Why
could it be this slow. Would it make a difference if i used Skype
instead of Jabber for example?

Thanks for any hints!

Benjamin
Re: Docshare slow? [message #623961 is a reply to message #623960] Tue, 08 July 2008 11:38 Go to previous messageGo to next message
Scott Lewis is currently offline Scott Lewis
Messages: 970
Registered: July 2009
Senior Member
Hi Benjamin,

Benjamin Zeiss wrote:
> Hello everyone,
>
> i was just playing around with the docshare plugin and made it work
> after making myself a little familiar with ECF. However, it is kind of
> slow.


I/We've not seen slowness in any of our tests with our own Openfire
server nor with Google talk's service. If you would like to try some
guest accounts on the ecf.eclipse.org openfire server please send an
email to me directly at slewis at composent.com and I'll give you access
to some accounts.

I am using a public jabber server (jabber.scha.de) in Germany and
> i have a very speedy university connection. Currently, i am testing
> collaborative editing with myself using a virtual machine and have to
> wait roughly two seconds for each changed character. Having watched the
> available screencast, this is obviously supposed to be quicker. Why
> could it be this slow.


I would say that given that you have a low latency network, it is almost
certainly that the server has some latency (for whatever reason).

>
>Would it make a difference if i used Skype
> instead of Jabber for example?


It might. I've noticed that Skype's app 2 app service (what ECF
uses/depends upon) can sometimes have a relatively high latency,
however. I suspect it depends upon the Skype load but haven't done any
careful examination yet.

FWIW, the logic implementing the shared editing does not take up
significant time on reasonably powered machines, so the latency you are
seeing is almost certainly due to the network (unlikely in your case)
and/or the server (seems fairly likely).

Scott
Re: Docshare slow? [message #623963 is a reply to message #623961] Tue, 08 July 2008 23:21 Go to previous messageGo to next message
Mark is currently offline Mark
Messages: 61
Registered: July 2009
Member
Scott,
I have seen slowness in IMing in Eclipse via ECF versus a client like
Pidgin. I have both open and the messages appear in Pidgin noticeably
before Eclipse.


Scott Lewis wrote:
> Hi Benjamin,
>
> Benjamin Zeiss wrote:
>> Hello everyone,
>>
>> i was just playing around with the docshare plugin and made it work
>> after making myself a little familiar with ECF. However, it is kind of
>> slow.
>
>
> I/We've not seen slowness in any of our tests with our own Openfire
> server nor with Google talk's service. If you would like to try some
> guest accounts on the ecf.eclipse.org openfire server please send an
> email to me directly at slewis at composent.com and I'll give you access
> to some accounts.
>
> I am using a public jabber server (jabber.scha.de) in Germany and
>> i have a very speedy university connection. Currently, i am testing
>> collaborative editing with myself using a virtual machine and have to
>> wait roughly two seconds for each changed character. Having watched
>> the available screencast, this is obviously supposed to be quicker.
>> Why could it be this slow.
>
>
> I would say that given that you have a low latency network, it is almost
> certainly that the server has some latency (for whatever reason).
>
> >
>> Would it make a difference if i used Skype instead of Jabber for example?
>
>
> It might. I've noticed that Skype's app 2 app service (what ECF
> uses/depends upon) can sometimes have a relatively high latency,
> however. I suspect it depends upon the Skype load but haven't done any
> careful examination yet.
>
> FWIW, the logic implementing the shared editing does not take up
> significant time on reasonably powered machines, so the latency you are
> seeing is almost certainly due to the network (unlikely in your case)
> and/or the server (seems fairly likely).
>
> Scott
Re: Docshare slow? [message #623965 is a reply to message #623961] Wed, 09 July 2008 02:23 Go to previous messageGo to next message
Benjamin Zeiss is currently offline Benjamin Zeiss
Messages: 29
Registered: July 2009
Junior Member
To anyone interested:

I have actually tested docshare with the guest accounts of the ECF
openfire server and it worked perfectly fine. I suspect that there is
either something wrong with those public servers that i tested or they
simply have too many users. I also made a quick setup of my own openfire
server and it worked fine as well. So Scotts point is true. Some free
public servers are doing something that prevents the shared editing from
working as expected.

Ben

Scott Lewis wrote:
> Hi Benjamin,
>
> Benjamin Zeiss wrote:
>> Hello everyone,
>>
>> i was just playing around with the docshare plugin and made it work
>> after making myself a little familiar with ECF. However, it is kind of
>> slow.
>
>
> I/We've not seen slowness in any of our tests with our own Openfire
> server nor with Google talk's service. If you would like to try some
> guest accounts on the ecf.eclipse.org openfire server please send an
> email to me directly at slewis at composent.com and I'll give you access
> to some accounts.
>
> I am using a public jabber server (jabber.scha.de) in Germany and
>> i have a very speedy university connection. Currently, i am testing
>> collaborative editing with myself using a virtual machine and have to
>> wait roughly two seconds for each changed character. Having watched
>> the available screencast, this is obviously supposed to be quicker.
>> Why could it be this slow.
>
>
> I would say that given that you have a low latency network, it is almost
> certainly that the server has some latency (for whatever reason).
>
> >
>> Would it make a difference if i used Skype instead of Jabber for example?
>
>
> It might. I've noticed that Skype's app 2 app service (what ECF
> uses/depends upon) can sometimes have a relatively high latency,
> however. I suspect it depends upon the Skype load but haven't done any
> careful examination yet.
>
> FWIW, the logic implementing the shared editing does not take up
> significant time on reasonably powered machines, so the latency you are
> seeing is almost certainly due to the network (unlikely in your case)
> and/or the server (seems fairly likely).
>
> Scott
Re: Docshare slow? [message #623966 is a reply to message #623963] Wed, 09 July 2008 02:30 Go to previous messageGo to next message
Benjamin Zeiss is currently offline Benjamin Zeiss
Messages: 29
Registered: July 2009
Junior Member
Hi Mark,

Mark wrote:
> I have seen slowness in IMing in Eclipse via ECF versus a client like
> Pidgin. I have both open and the messages appear in Pidgin noticeably
> before Eclipse.

Have you tried that by sending yourself messages using ECF and pidgin
through two different accounts on different machines? I am asking,
because i suspect it is easy to get the impression that ECF is somehow
slower if you don't test the latency systematically. I had a similar
impression yesterday, but i didn't test it systematically. It may be
again just a problem with the jabber server.

Ben
Re: Docshare slow? [message #623979 is a reply to message #623966] Wed, 09 July 2008 20:07 Go to previous message
Mark is currently offline Mark
Messages: 61
Registered: July 2009
Member
No. I had Pidgin and Google Talk (the browser) and ECF opne on my
machine IMing someone else. I can see the others responding quicker. If
I don't have the others open it really isn't that much of an issue. Just
mentioning what i was observing.

Benjamin Zeiss wrote:
> Hi Mark,
>
> Mark wrote:
>> I have seen slowness in IMing in Eclipse via ECF versus a client like
>> Pidgin. I have both open and the messages appear in Pidgin noticeably
>> before Eclipse.
>
> Have you tried that by sending yourself messages using ECF and pidgin
> through two different accounts on different machines? I am asking,
> because i suspect it is easy to get the impression that ECF is somehow
> slower if you don't test the latency systematically. I had a similar
> impression yesterday, but i didn't test it systematically. It may be
> again just a problem with the jabber server.
>
> Ben
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