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Application size and performance |
Thu, Jun 27 2013 9:11 AM | Permanent Link |
Christian Kaufmann | My application is growing and I wonder, if there may be restrictions
about code size and number of components. Currently the compressed sizes are: index.js 257KB modern.css 87KB I have about 15 forms, all created at startup and I use nested panels for aligning controls. For me this doesn't looks big but before I start "to grow" the application (add up to 50 forms) I would like to know others experiences. Also I didn't find a way to see how much memory is used in the browser by my application and if this is ok or if it is too much. cu Christian |
Thu, Jun 27 2013 9:46 AM | Permanent Link |
Raul Team Elevate | On 6/27/2013 9:11 AM, Christian Kaufmann wrote:
> My application is growing and I wonder, if there may be restrictions > about code size and number of components. Sounds quite reasonable to me but no first hand experience - all apps small at this time. > Also I didn't find a way to see how much memory is used in the browser > by my application and if this is ok or if it is too much. This will likely depend on browser implementation but in Chrome there is a nifty task manager under Tools->Task Manager menu (and there is even more detail in Stats For Nerd link there). This will show entire tab process (and not just your app) - i'm thinking one could do an absolute minimum html )or ideally 1 line JS app to init the JS engine) page and compare memory usage of that with EWB app but not sure if that would capture the memory just for EWB app well enough. Raul |
Thu, Jun 27 2013 9:51 AM | Permanent Link |
Matthew Jones | Have a look also at the F12 options in Chrome, one of which is Timeline. That gives
you tons of info on memory and time and lots! /Matthew Jones/ |
Thu, Jun 27 2013 10:20 AM | Permanent Link |
Matthew Jones | > I have about 15 forms, all created at startup
That prompted me to look at my application, which I've been pondering the startup time of recently. I now have 8 forms along with the main form, and I just turned off auto-create for them all to see what the difference was. Much faster startup. Thus I have now searched for .ShowModal; and added a call to a "NeedfrmExample" procedure for each form, which will be in the form unit and like: procedure NeedFrmOptions; begin if not assigned(frmOptions) then frmOptions := TfrmOptions.Create(Application); end; This then does the work when needed, and not before (or at all for many of them). The rest of the code is as-before, but with less resource taken, and less time at startup. Thanks for the prompt. /Matthew Jones/ |
Thu, Jun 27 2013 10:44 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Christian,
<< Currently the compressed sizes are: index.js 257KB modern.css 87KB >> jQuery is around 55KB minified (compressed), and ExtJS is at least 700+KB minified, before you even write a single line of code (and doesn't include any CSS). That's the perspective to keep in mind, in terms of code size. Having said that, each form (and its contents) takes time to create/load, so reducing the number of auto-create forms and using dynamically created/freed forms improves startup performance and the user experience, just as it does with Delphi applications. It also allows for leaner memory usage, as HTML elements are destroyed in the browser when the form itself is destroyed. Tim Young Elevate Software www.elevatesoft.com |
Thu, Jun 27 2013 11:39 AM | Permanent Link |
Matthew Jones | Tim, could you add an option somewhere to have the IDE not auto-create forms by
default? That would be nice one someone has decided to take control of the forms. (Personally I'd add it to the project, so a new project is easy and just works, but a complex project under manual management can be set appropriately.) /Matthew Jones/ |
Thu, Jun 27 2013 12:58 PM | Permanent Link |
Dan Fiscalsoft | On 6/27/2013 11:39 AM, (Matthew Jones) wrote:
> Tim, could you add an option somewhere to have the IDE not auto-create forms by > default? That would be nice one someone has decided to take control of the forms. > (Personally I'd add it to the project, so a new project is easy and just works, but > a complex project under manual management can be set appropriately.) > > /Matthew Jones/ > Matthew, I may not be reading your question right, but if I am, I was just reading about this yesterday in the help file. If you place all of the forms in the Available Forms box they won't be marked as Auto-Create. Hopefully I'm not too far off base and this helps a bit. -Dan |
Thu, Jun 27 2013 12:59 PM | Permanent Link |
Dan Fiscalsoft | On 6/27/2013 12:58 PM, Dan Collins wrote:
> On 6/27/2013 11:39 AM, (Matthew Jones) wrote: >> Tim, could you add an option somewhere to have the IDE not auto-create >> forms by >> default? That would be nice one someone has decided to take control of >> the forms. >> (Personally I'd add it to the project, so a new project is easy and >> just works, but >> a complex project under manual management can be set appropriately.) >> >> /Matthew Jones/ >> > Matthew, > I may not be reading your question right, but if I am, I was just > reading about this yesterday in the help file. If you place all of the > forms in the Available Forms box they won't be marked as Auto-Create. > > Hopefully I'm not too far off base and this helps a bit. > > -Dan > > > > Sorry, meant to add reference to that post: Manual -> Getting Started -> Project Options -Dan |
Thu, Jun 27 2013 2:56 PM | Permanent Link |
Matthew Jones | Indeed, but if you then create another new form, it is put in the auto-create list.
It is an option to stop that, per project, that I'd like. Even a manual option in the project file would be fine - it is perhaps an advanced option. /Matthew Jones/ |
Thu, Jun 27 2013 4:13 PM | Permanent Link |
Dan Fiscalsoft | On 6/27/2013 2:56 PM, (Matthew Jones) wrote:
> Indeed, but if you then create another new form, it is put in the auto-create list. > It is an option to stop that, per project, that I'd like. Even a manual option in > the project file would be fine - it is perhaps an advanced option. > > /Matthew Jones/ > So you mean an option as an alternative to going into project options and placing the new form in the available forms box every time you create a new form? We're going to run out of space for all of these extra buttons I can actually understand your desire for little options like this. I wish that TMemo's were, by default, created with TabStop = False. However, when I think about it, it's really just me being lazy. |
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