Re: [Dynapi-Dev] TCanvas vs. DynLayer ( I have no life : ) )

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but what do you do if all you can do is get your hands on a c128 and are forced
to "go 64"?

I am quite angry with myself that I am even sending this.  I spent too much time
playing with my old Vic20 / C64 / C128.  btw:  do you know which of the 8 colors
was lost when the vic twenty was upgraded to the 16 color C64?

Pascal Bestebroer wrote:

> I'm not saying the OS should take care of it, I'm saying the parser (or
> other compiler) should have taken care of inserting memory-freeing.
> Borland compilers make sure that when the program is closed the used memory
> is freed (pointers, objects, etc..)
>
> This is something the browser should also do, it's creating a workspace
> (dom+javascript model) and it should simply destroy everything in its
> contents when closing or reloading a new page (i.e.: a new dom + javascript
> space)
>
> And not starting an OS discussion here, but there is NO good OS, they all
> have flaws and annoying aspects (much like developers :) so work with what
> you like. (damn how I want my C64 back)
>
> In reply to your other mail:
>
> "No , this will not speed up things at all...
> doing:
>
> Class.prototype.method=function(){ }
>  OR
> function method(){ }
> Class.prototype.method=method
>   OR
> Class.prototype.method=function method() { }"
>
> this is not how it should be done. Alot of methods in DynAPI contain if
> statements for ie/ns checking.. you can optimize this by removing the IF
> statements from the runtime loop, simple example of setX/setY:
>
> if (is.ns) {
>         DynLayer.prototype._setX=function(){ this.css.left=this.x;
> this.pageX=this.getPageX() }
>         DynLayer.prototype._setY=function(){ this.css.top=this.y;
> this.pageY=this.getPageY() }
> } else {
>         DynLayer.prototype._setX=function(){ this.css.pixelLeft=this.x;
> this.pageX=this.getPageX() }
>         DynLayer.prototype._setY=function(){ this.css.pixelTop=this.y;
> this.pageY=this.getPageY() }
> }
>
> Your still assigning methods to the prototype, but at parse time, not run
> time.. removing the IF statements, and speeding the execution of the code
> (not by much, but it is an increase in speed)
>
> This can be done for multiple methods (setHTML, moveTo, setSizez, etc)
>
> Pascal Bestebroer
> pa...@dy...
> http://www.dynamic-core.net
>
> > -----Oorspronkelijk bericht-----
> > Van: dyn...@li...
> > [mailto:dyn...@li...]Namens Bart Bizon
> > Verzonden: vrijdag 16 februari 2001 23:18
> > Aan: dyn...@li...
> > Onderwerp: SV: [Dynapi-Dev] TCanvas vs. DynLayer
> >
> >
> > true ... but by that definition you would expect windows programs
> > to release memory by default... and the OS should handle it .. right?
> > Which it doesn't.... it's not just DynAPI pages that swallow
> > memory, ordinary pages do to...
> > and so do many windows programs.
> > (But... this is assuming that windows is actually a good OS...
> > which it is... NOT)
> > Taking this into account... you have to work with the conditions
> > at hand...
> >
> > -----Ursprungligt meddelande-----
> > Från: Pascal Bestebroer <pa...@dy...>
> > Till: dyn...@li... <dyn...@li...>
> > Datum: den 16 februari 2001 20:15
> > Ämne: RE: [Dynapi-Dev] TCanvas vs. DynLayer
> >
> >
> > >to be even less helpful here, I truly believe it can't be fixed, and that
> > >it's an browser issue..
> > >I truly hope I'm wrong, but it seems to me that the javascript
> > interpreters
> > >should automatically unload any memory no matter what.
> > >This is how all (good) environments work) they get space to work in, and
> > >once it's done that single memory block is freed.
> > >
> > >Maybe I'm wrong (and I truly hope so) but I won't be searching for a
> > >solution on this.
> > >
> > >Pascal Bestebroer
> > >pa...@dy...
> > >http://www.dynamic-core.net
> > >
> > >> -----Oorspronkelijk bericht-----
> > >> Van: dyn...@li...
> > >> [mailto:dyn...@li...]Namens Michael Ellis
> > >> Verzonden: vrijdag 16 februari 2001 19:25
> > >> Aan: 'dyn...@li...'
> > >> Onderwerp: RE: [Dynapi-Dev] TCanvas vs. DynLayer
> > >>
> > >>
> > >> I agree... this is a huge problem. Pretty much makes the
> > software unusable
> > >> unless you have a ton of ram.
> > >>
> > >> I currently have a level-3 defect on the memory leak generated by
> > >> DynAPI for
> > >> a software product that is supposed to be out the door in a
> > week. We have
> > >> not successfully had any impact whatsoever on this issue to date.
> > >>
> > >> Anyone had any luck with this? Anyone have any ideas?
> > >>
> > >> Mike Ellis
> > >>
> > >> -----Original Message-----
> > >> From: Lasse Lindgård [mailto:la...@li...]
> > >> Sent: Friday, February 16, 2001 07:00
> > >> To: dyn...@li...
> > >> Subject: RE: [Dynapi-Dev] TCanvas vs. DynLayer
> > >>
> > >>
> > >> More importantly than upfront performance:
> > >> Does it reduce the memory leak ?
> > >>
> > >> If not then performance will be on a freight train to
> > swap-land in no time
> > >> anyways.
> > >>
> > >> My current DynAPI pages eat a meg or more pr. reload. It is not a big
> > >> problem at my 256mb machine.  But just the thoughts of my clients 32mb
> > >> machines makes me shiver.
> > >>
> > >> Any news on the memoryleak front ?
> > >> Is anybody working on it at all or are everybody busy doing
> > "cool" stuff
> > >> instead ?
> > >>
> > >> For DynAPI ever to be useful. We really need to get that memory problem
> > >> fixed.
> > >>
> > >> /Lasse
> > >>
> > >>
> > >> -- __--__--
> > >>
> > >> Message: 6
> > >> From: "Eytan Heidingsfeld" <ey...@tr...>
> > >> To: "Dynapi-Dev" <dyn...@li...>
> > >> Date: Fri, 16 Feb 2001 14:18:56 +0200
> > >> Subject: [Dynapi-Dev] TCanvas vs. DynLayer
> > >> Reply-To: dyn...@li...
> > >>
> > >> This is a multi-part message in MIME format.
> > >>
> > >> ------=_NextPart_000_0002_01C09823.65DE2AF0
> > >> Content-Type: text/plain;
> > >> charset="iso-8859-1"
> > >> Content-Transfer-Encoding: 7bit
> > >>
> > >> I'd love to test performance one against the other. The only test
> > >> I did was
> > >> create 100 layers and check the times. In IE TCanvas was 200
> > ms faster and
> > >> in NS it was 1300(canvas) to 10000(dynlayer).
> > >>
> > >> I'd love you guys to start tearing my canvas to shreds.
> > >>
> > >> Included in the zip are:
> > >> tcanvas.js
> > >> browser.js
> > >>
> > >> they need to be included in the document(working on adding .include)
> > >>
> > >> 8an
> > >>
> > >>
> > >>
> > >>
> > >> _______________________________________________
> > >> Dynapi-Dev mailing list
> > >> Dyn...@li...
> > >> http://lists.sourceforge.net/lists/listinfo/dynapi-dev
> > >>
> > >
> > >
> > >_______________________________________________
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> > >Dyn...@li...
> > >http://lists.sourceforge.net/lists/listinfo/dynapi-dev
> > >
> >
> >
> > _______________________________________________
> > Dynapi-Dev mailing list
> > Dyn...@li...
> > http://lists.sourceforge.net/lists/listinfo/dynapi-dev
> >
>
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--
Michael Pemberton
mp...@ph...
ICQ: 12107010