Clue about morphic performance??

> Hello all,
>
> I sometimes have reason to run code on machines that are accessible only
> by a remote desktop connection, and I have noticed something that might be
> a useful clue: on an identical setup (same server, same network, same RDP
> client), Dolphin performs quite well and Pharo struggles (often severely).
> Are we simply that much slower in generating graphics and/or pushing it
> over the RDP connection, or is morphic drawing too much?  I suppose the
> RDP server could be hindering Pharo by always sending one whole window
> (e.g. the whole Pharo desktop) at a time or something stupid like that.
> It might be worth a look by someone with morphic and RDP expertise.
>
> Bill
>
>
> _______________________________________________
> Pharo-project mailing list
> [hidden email]
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project 

> Regards, Gary
>
> ----- Original Message -----
> From: "Schwab,Wilhelm K" <[hidden email]>
> To: <[hidden email]>
> Sent: Monday, February 22, 2010 12:28 PM
> Subject: [Pharo-project] Clue about morphic performance??
>
>
>> Hello all,
>>
>> I sometimes have reason to run code on machines that are accessible only
>> by a remote desktop connection, and I have noticed something that might be
>> a useful clue: on an identical setup (same server, same network, same RDP
>> client), Dolphin performs quite well and Pharo struggles (often severely).
>> Are we simply that much slower in generating graphics and/or pushing it
>> over the RDP connection, or is morphic drawing too much?  I suppose the
>> RDP server could be hindering Pharo by always sending one whole window
>> (e.g. the whole Pharo desktop) at a time or something stupid like that.
>> It might be worth a look by someone with morphic and RDP expertise.
>>
>> Bill
>>
>>
>> _______________________________________________
>> Pharo-project mailing list
>> [hidden email]
>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>
>
> _______________________________________________
> Pharo-project mailing list
> [hidden email]
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>

> On 22 February 2010 17:16, Gary Chambers <[hidden email]>
> wrote:
>> Indeed. Since Dolphin uses native window components, RDP can work at a
>> more
>> abstract level (i.e. aware of things like buttons, checkboxes etc.). So,
>> for
>> example, a button is drawn by the RDP client, effectively.
>>
>> Squeak/Pharo draws its own, therefore all updates are bitmap based and
>> the
>> graphics (the World bits) are sent across the link...
>>
>
> I haven't heard of RDP before. What if server using different font
> sizes/theme for UI?
> To my knowledge, all remote-desktop tools transferring the updated
> bits, using various techniques to detect the portion of screen to be
> updated.
> On windows, there's even a virtual display driver, which adds a video
> card to list of devices. So, any windows application can't escape such
> low level, and all what is drawn on such 'display' can be transmitted
> via network to show on different PC.
>
>> Regards, Gary
>>
>> ----- Original Message -----
>> From: "Schwab,Wilhelm K" <[hidden email]>
>> To: <[hidden email]>
>> Sent: Monday, February 22, 2010 12:28 PM
>> Subject: [Pharo-project] Clue about morphic performance??
>>
>>
>>> Hello all,
>>>
>>> I sometimes have reason to run code on machines that are accessible only
>>> by a remote desktop connection, and I have noticed something that might
>>> be
>>> a useful clue: on an identical setup (same server, same network, same
>>> RDP
>>> client), Dolphin performs quite well and Pharo struggles (often
>>> severely).
>>> Are we simply that much slower in generating graphics and/or pushing it
>>> over the RDP connection, or is morphic drawing too much? I suppose the
>>> RDP server could be hindering Pharo by always sending one whole window
>>> (e.g. the whole Pharo desktop) at a time or something stupid like that.
>>> It might be worth a look by someone with morphic and RDP expertise.
>>>
>>> Bill
>>>
>>>
>>> _______________________________________________
>>> Pharo-project mailing list
>>> [hidden email]
>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>
>>
>> _______________________________________________
>> Pharo-project mailing list
>> [hidden email]
>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>
>
>
>
> --
> Best regards,
> Igor Stasenko AKA sig.
>
> _______________________________________________
> Pharo-project mailing list
> [hidden email]
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project