Hi Anthony,

What is the exact meaning of this: 128L * 1024L * 1024L?

1) I understand that this is 128 Mb here, but what more?
Is that only the threshold when GC triggers? Or is it the total amount
of memory available for aped (if not then where is it? Is there even a
limit?)

2) Is it better to increase the value above or lower it? I have no
clue why I would do that at all actually.

3) Can you tell me a bit more about Jaegermonkey? I don't understand
what it does.

Thanks for your time.

Nicolas.



On 24 jan, 00:08, Nicolas <[email protected]> wrote:
> Thanks for all the information.
>
> It seems that I am less sure now that I have a memory leak.
>
> I made a wrong diagnosis for the empty example that I showed above. It
> actually works. And delete does its job.
>
> But the GC does not indeed trigger straight away.
>
> I wrongly assumed that because memory was going up and up, it would
> eventually crash as in my first experiments.
>
> Now, I know a bit more.
>
> I will now go back to the drawing board, and check that I indeed have
> a memory leak (the problem that I experimented in the first place
> might have been related simply to an overload of the server, asking
> too many things).
>
> I'll let you know if I find a memory leak again :
>
> Thanks again. This info was very valuable: "BTW, you should be aware
> that Spidermonkey has a garbage collector which
> is called when it reach a defined amount of memory".
>
> On 23 jan, 22:41, Anthony Catel <[email protected]> wrote:
>
> > PS:
>
> > You can also update the server with the support of JaegerMonkey +
> > MooTools 1.3 :https://github.com/APE-Project/APE_Server/tree/jaegerape
>
> > Le 23/01/11 23:40, Anthony Catel a crit :
>
> > > Hi,
>
> > > What version of APE are you using?
>
> > > BTW, you should be aware that Spidermonkey has a garbage collector
> > > which is called when it reach a defined amount of memory :
> > >https://developer.mozilla.org/en/JS_NewRuntime
>
> > > You can tune this value here :
> > >https://github.com/APE-Project/APE_Server/blob/master/modules/libape-...
>
> > > Try this setting : 8L * 1024L * 1024L and just rebuild the module
> > > (make inside the module directory).
>
> > > Thanks,
>
> > > Anthony C.
>
> > > Le 23/01/11 23:24, Nicolas a crit :
> > >> Hi,
>
> > >> Test loading my app on the server side, I realized that I had a big
> > >> memory leak.
>
> > >> Narrowing down the problem, I ended up load testing something really
> > >> simple, with still a memory leak:
>
> > >>                              var i_max=50000;
> > >>                              mc=0;
> > >>                              for (var i=1;i<=i_max;i++)
> > >>                              {
> > >>                                  matches[i]=new Test_Class("s",
> > >> 1,mc,"local",0,0,1);
>
> > >>                                  delete (matches[i]); // Never does
> > >> anything... There does not seem to be any destructor in Mootools.
> > >>                              }
>
> > >> With the empty class Test_Class defined like this:
>
> > >> Test_Class= new Class({
>
> > >>     //Constructor
> > >>     initialize: function(param1, param2, param3, )
> > >>          {
>
> > >>          }
> > >> });
>
> > >> The 50,000 iterations lead to a leak of 40 Mb, that is 0.8kB per new
> > >> object of the class created.
> > >> I have Mootools 1.2.4 on the server, with a compile from the git from
> > >> the 16th of december.
>
> > >> My questions are:
>
> > >> 1) Do you think that the memory leak is related to SpiderMonkey or
> > >> Mootools?
> > >> 2) Do you think upgrading to Mootools 1.3 help? I have tried but
> > >> failed to do so. For some reasons, I don't manage to make it work.
> > >> 3) Can you reproduce the problem on you server? It should not take
> > >> very long to copy the few lines above.
> > >> 4) Are there any know memory leak left in Ape?
>
> > >> Any help greatly appreciated.
>
> > >> Thanks in advance.
>
> > >> Nicolas.

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