Well, I tried today using that to release some memory used by Roassal. Let's say all the instances of ROElement. So I executed the following code:
ROElement allInstances do: [:el | el becomeForward: nil ]. The next second the image crashed. Then I thought that was because the visualization was open. So I did another little experiment, closed the visualization, and then run the following code: ROElement allInstances do: [:el | el becomeForward: nil ]. "Everithing ok for now" Smalltalk garbageCollect. Again, same result, the image crashed. Also instead of doing garbage collect, I tried open the browser, but the image crashed just few seconds later. At least (in my opinion), building a reliable tool that can crash your image easily is not 1 hour work, nor 1 week work. Cheers, Alejandro 2014-02-15 16:34 GMT-08:00 Levente Uzonyi <le...@elte.hu>: > On Sat, 15 Feb 2014, Andres Valloud wrote: > > FYI writing any decent production quality tool takes way more than 1 >> hour. IME writing *two* reference finders, it takes a bunch of effort to >> make them work correctly, reliably, quickly, and in a useful way. >> > > I would agree with you if the building blocks weren't already in the image. > > Q: Which objects point to myObject? > A: myObject inboundPointers > > Q: How can I dereference myObject? > A: myObject becomeForward: nil > > Do you think it takes a summer to combine and extend these two lines into > a tool? > > > Levente > > > >> On 2/15/14 6:31 , Alexandre Bergel wrote: >> >>> Well... I do no think so. There is a fair amount of work regarding >>> memory profiling. Dereferencing is probably only a small piece off. >>> Anyway, we will have time to refine the project description >>> >>> Alexandre >>> >>> Le 14-02-2014 à 18:17, Levente Uzonyi <le...@elte.hu> a écrit : >>>> >>>> On Fri, 14 Feb 2014, Alexandre Bergel wrote: >>>>> >>>>> Hi Paolo, >>>>> >>>>> I can mentor the project below: >>>>> >>>>>> Project idea >>>>>> >>>>>> Name: Instance Derreferencer for Pharo >>>>>> Skill level: Intermediate >>>>>> Possible Mentors: >>>>>> Name of the Student: Alejandro Infante >>>>>> >>>>>> Description: >>>>>> A problem with image based environment is, when you detect a memory >>>>>> leak is removing those objects from the system. This tool would provide a >>>>>> handy UI to inspect the current instances of the classes that we think >>>>>> they >>>>>> have a memory leak and, in case there are objects that are not being >>>>>> garbage collected, offer to the user a Derreference button. This is going >>>>>> to iterate over all the objects that have a reference to my object and >>>>>> remove that reference, finally enabling the Garbage Collector to get rid >>>>>> of >>>>>> the leak. >>>>>> >>>>> >>>> It shouldn't take more than an hour to implement such tool. >>>> >>>> >>>> Levente >>>> >>>> >>>>> Cheers, >>>>> Alexandre >>>>> >>>>> >>>>> >>>>>> >>>>>> >>>>>> 2014-02-14 5:08 GMT-08:00 Nicolas Petton <petton.nico...@gmail.com>: >>>>>> >>>>>> Paolo Bonzini writes: >>>>>> >>>>>> Il 11/02/2014 10:42, Damien Cassou ha scritto: >>>>>>> >>>>>>>> Hi fellow Pharo hackers, >>>>>>>> >>>>>>>> ESUG, the European Smalltalk User Group, is applying for >>>>>>>> this >>>>>>>> year's Google Summer of Code. As you probably know, the >>>>>>>> Summer >>>>>>>> of Code provides the opportunity to fund students to work >>>>>>>> during >>>>>>>> the summer on Pharo. Please reply to this >>>>>>>> email (be sure to use "Reply to all") if you have ideas you >>>>>>>> would like to propose. >>>>>>>> >>>>>>>> Please include a summary of the project and links to web >>>>>>>> pages >>>>>>>> that can help prospective students to write their >>>>>>>> application. >>>>>>>> Please also include the following information: >>>>>>>> >>>>>>>> - if applicable, other dialects that you would be willing to >>>>>>>> mentor this project for >>>>>>>> >>>>>>>> - the skill level >>>>>>>> >>>>>>>> - name of the mentor(s), email addresses, and possibly any >>>>>>>> IRC >>>>>>>> network/channel/nickname where they can be found. >>>>>>>> >>>>>>>> Thanks for contributing to ESUG's Summer of Code >>>>>>>> application! >>>>>>>> >>>>>>> >>>>>>> Just a note that I haven't yet processed this thread, but our ideas >>>>>>> page >>>>>>> is already looking pretty well (and Pharo section is big) so I'll >>>>>>> probably do it in the weekend or next Monday. >>>>>>> >>>>>> >>>>>> I can do it if you want. >>>>>> >>>>>> Cheers, >>>>>> Nico >>>>>> >>>>> >>>>> -- >>>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >>>>> Alexandre Bergel http://www.bergel.eu >>>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >>>>> >>>> >>>> >>> >>
