Hello,
We already have discussion about GWT memory management here:
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/a690a63c53af27bc
Tuesday, February 24, 2009, 11:31:44 AM, you wrote:
> I've tried reloading, I made a mistake some posts ago.. memory
> decreases only if the browser is closed and then opened again. Only
> reloading causes a bigger increment of memory usage.
> On 24 Feb, 10:20, koalina <koalin...@gmail.com> wrote:
>> Hi alex,
>> sorry but I can't see how fix the number of rows as I'm using a
>> memoryProxy object.
>> So, the timer is defined as follows:
>> Timer t = new Timer() {
>>
>> public void run() {
>> getShipInfo();
>>
>> }
>>
>> };
>> where getShipInfo() is
>>
>> private void getShipInfo() {
>>
>> MainEntryPoint.getServiceWsNaviInMare().getInfoNaviInMare(new
>> AsyncCallback() {
>>
>> public void onFailure(Throwable caught) {
>> throw new UnsupportedOperationException("Not supported
>> yet.");
>> }
>>
>> public void onSuccess(Object result) {
>> Vector listaNavi = (Vector) result;
>> GWT.log("Lista Navi Ricevuta: "+listaNavi.toString(),
>> null);
>> if (listaNavi.size()>0) {
>>
>> Object[][] data = new Object[listaNavi.size()]
>> [15];
>> Iterator i = listaNavi.iterator();
>> int index = 0;
>>
>> while (i.hasNext()) {
>> Nave unaNave = (Nave) i.next();
>> data[index] = new Object[]{
>> unaNave.getIdNave(), unaNave.getNomeNave
>> (),
>>
>> unaNave.getLocalita(), unaNave.getImbarco
>> (),
>>
>> etc....
>>
>> GWT.log("Nave "+data[index][0]+data[index]
>> [1].toString(), null);
>>
>> index++;
>> unaNave = null;
>>
>> }
>> if (store!=null) {
>> store.removeAll();
>> }
>> MemoryProxy proxy = new MemoryProxy(data);
>> ArrayReader reader = new ArrayReader(recordDef);
>> store = new Store(proxy, reader);
>> store.load();
>> store.commitChanges();
>>
>> grid.reconfigure(store, columnModel);
>> //240209Miki: x diminuire memory leak ...
>> grid.clear();
>> data = null;
>> proxy = null;
>> reader =null;
>> store = null;
>>
>> }
>> }
>>
>> });
>>
>> }
>>
>> I've tried with FF and there's no problem...so it's an issue with ie7.
>> Can you see some big error in the code i posted just above? thx for
>> help!
>> Michela
>>
>> On 24 Feb, 09:48, "alex.d" <alex.dukhov...@googlemail.com> wrote:
>>
>> > Assuming adding/removing markers to/from the map is leakless (google
>> > probably knows how to do this ;-) we are left with gwt-ext grid. Every
>> > 10 sec you remove old rows and add new ones. So you have some DOM-
>> > Elements (a table row) that are removed/created every 10 seconds.
>> > Probably it's a grid's particular implementation that leaks. But most
>> > probably it's just IE that doesn't really remove garbage properly even
>> > when it can/should. So what can you do?
>> > 1. If it's grid that leaks: dump it - implement smth. yourself with
>> > vanilla GWT.
>> > 2. It it's IE: let's say the total ammount of markers is never bigger
>> > than 25 - you can create 25 rows in the table and instead of adding/
>> > removing them you just change the text. This way you'll have slightly
>> > more memory allocated at the beginning but hopefully no leaks while
>> > running because no DOM-Elements are created/removed.
>>
>> > hth
>>
>> > On 24 Feb., 09:14, koalina <koalin...@gmail.com> wrote:
>>
>> > > Hi Jason, yes, reloading page cause memory usage fall out.
>> > > My app is quite simple: a gwt ext tab panel, the first tab showing the
>> > > map widget, the second one a gwt ext grid with a few rows (more or
>> > > less 10), each one with some information about the markers showed.
>> > > I've three "thread", implemented as Timer, which refresh positions of
>> > > markers, informations and last update time. Each thread make a rpc
>> > > call and is always running, even when the tab of interest is not
>> > > active....
>> > > Do you see some critical issue in this application?
>> > > thx for help, have a nice day
>> > > Michela
>>
>> > > On 23 Feb, 20:55, Jason Essington <jason.essing...@gmail.com> wrote:
>>
>> > > > Well, I've read various articles claiming that IE leaks like a sieve
>> > > > (don't have any references for you right now, but I'm sure google
>> > > > could help).
>>
>> > > > One thing to try is does IE's memory usage come down when you reload
>> > > > the page, or load a new page?
>>
>> > > > -jason
>>
>> > > > On Feb 23, 2009, at 8:44 AM, koalina wrote:
>>
>> > > > > is there anyone who knows about memory leaks in this case?I've a
>> > > > > tabPanel, but tab are not dinamically added, a MapWidget,
>> > > > > periodically
>> > > > > rpc to refresh marker on map
>> > > > > I'm really getting crazy!
>> > > > > thx,
>> > > > > Michela
>>
>> > > > > On 23 Feb, 14:37, koalina <koalin...@gmail.com> wrote:
>> > > > >> I'm using google maps api for gwt, no memory leak found
>> > > > >> gwt-ext, some leaks found, but it seems not to be my case...
>>
>> > > > >> please note that with JScript leaks detect there's no leak found...
>> > > > >> could it be a problem with ajaxLoader?or perhaps something coming
>> > > > >> from
>> > > > >> timer.scheduleRepeating with rpc inside run body?
>> > > > >> Michela
>>
>> > > > >> On 23 Feb, 14:29, Mahavir Jain <vir.j...@gmail.com> wrote:
>>
>> > > > >>> You should try googling out for memory-leaks for the packages you
>> > > > >>> are
>> > > > >>> using..
>>
>> > > > >>> For eg:- If you are using Image bundles then try googling the
>> > > > >>> memory leaks
>> > > > >>> related to image bundles..
>>
>> > > > >>> Hope this will help.
>>
>> > > > >>> Thanks.
>> > > > >>> Mahavir
>>
>> > > > >>> On Mon, Feb 23, 2009 at 6:49 PM, koalina <koalin...@gmail.com>
>> > > > >>> wrote:
>>
>> > > > >>>> it is present web mode running on dedicated tomcat (I don't know
>> > > > >>>> for
>> > > > >>>> hosted mode..).
>> > > > >>>> iexplorer.exe process exponential grows..
>>
>> > > > >>>> On 23 Feb, 13:03, Eric Ayers <zun...@google.com> wrote:
>> > > > >>>>> Is this a problem in web mode, hosted mode, or both?
>>
>> > > > >>>>> On Mon, Feb 23, 2009 at 7:01 AM, koalina <koalin...@gmail.com>
>> > > > >>>>> wrote:
>>
>> > > > >>>>>> hi Mahavir ,
>> > > > >>>>>> thx for your reply.
>> > > > >>>>>> I'm working with gwt 1.5.3 and ie7, is this issue valid also in
>> > > > >>>>>>
>> > > > >>>>>> this
>> > > > >>>>>> case?
>> > > > >>>>>> thx,
>> > > > >>>>>> Michela
>>
>> > > > >>>>>> On 23 Feb, 12:57, Mahavir Jain <vir.j...@gmail.com> wrote:
>> > > > >>>>>>> I am not sure whether this applies to you or not but there is
>> > > > >>>>>>> memory
>> > > > >>>> leak
>> > > > >>>>>>> issue in IE6 browser for all RPC call.. You can check the issue
>> > > > >>>> onhttp://code.google.com/p/google-web-toolkit/issues/detail?
>> > > > >>>> id=1610..
>>
>> > > > >>>>>>> But this is not case for firefox.. Did you tried on firefox?
>>
>> > > > >>>>>>> Mahavir
>>
>> > > > >>>>>>> On Mon, Feb 23, 2009 at 5:13 PM, koalina <koalin...@gmail.com>
>> > > > >>>>>>>
>> > > > >>>>>>> wrote:
>>
>> > > > >>>>>>>> Hi all,
>> > > > >>>>>>>> I've developed a gwt app using MapWidget. The markers showed
>> > > > >>>>>>>> on the
>> > > > >>>>>>>> map are periodically refreshed via rpc calls. The refresh time
>> > > > >>>> period
>> > > > >>>>>>>> is 10 seconds. The app correctly runs for about an hour, then
>> > > > >>>>>>>>
>> > > > >>>>>>>> the
>> > > > >>>>>>>> memory used increase exponentially... I've installed the js
>> > > > >>>>>>>> leaks
>> > > > >>>>>>>> inspector for ie7, but no leak is catched... What can i do to
>> > > > >>>> resolve
>> > > > >>>>>>>> this problem? I've reviewed all code..but everything seems to
>> > > > >>>>>>>>
>> > > > >>>>>>>> be
>> > > > >>>>>>>> correct...
>> > > > >>>>>>>> Thx for helping, have a nice day,
>> > > > >>>>>>>> Michela
>>
>> > > > >>>>> --
>> > > > >>>>> Eric Z. Ayers - GWT Team - Atlanta, GA USAhttp://
>> > > > >>>> code.google.com/webtoolkit/
>
--
Best regards,
Alexey_Tsiunchik mailto:alexey.tsiunc...@gmail.com
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