2015-10-11 22:21 GMT+02:00 Henrik Nergaard <henri...@student.uia.no>:
> > > > > It looks like the taskbarThumbnails might be leaking memory. > > When moving the mouse across the taskbar viewing the different thumbnails > the memory usage increases by quite a lot (viewed in the taskmanager > (Windows) ). > > I made an example script to illustrate the resource usage. > > > > Test scenario: 20 windows; > > 1 Playground, 19 Nautilus browsers (these are minimized). > > > > =============== Create Test Scenario ======================== > > > > 19 timesRepeat: [ > > Nautilus openOnClass: Object. > > World doOneCycle. > > ]. > > World doOneCycle. > > World submorphs > > select: [ :m | > > m isKindOf: NautilusWindow > > ] > > thenDo: [ :m | m minimize ] > > ===== Enumerate the mouse moving from one taskbarButton to the next ======= > > > > | delay | > > > > delay := [ :msToWait | > > | t | > > t := Time now asMilliSeconds. > > [ (Time now asMilliSeconds - t) < msToWait ] > > whileTrue: [ World doOneCycle ]. > > > > ]. > > 20 timesRepeat: [ > > World submorphs > > detect: [:m | m isTaskbar ] > > ifFound: [ :taskbar | > > taskbar orderedTasks collect: > [ :task | > > task morph > > ] > > thenDo: [ :morph | > > | button | > > button := > (taskbar taskButtonOf: morph). > > morph > taskbarButtonEntered: button event: nil in: nil. > > delay value: > 100. > > morph > taskbarButtonLeft: button event: nil in: nil. > > delay value: > 100 > > ] > > ]. > > Smalltalk garbageCollect. > > ]. > > ============================================================ > > > > Results: (Newest Win vm -> Image 50377) > > > > opening the 20 Windows RAM used is 70MB. > > 1 iteration: 93MB > > 20 iterations: 130MB \ 190 MB when garbageCollect is commented out. > > > > Should the resource usage be that high? > No, this looks bad. Maybe this is because every thumbnail creates a new form to draw on. This is not needed in this case, as there is only one thumbnail view visible at time. But I doubt that this is the reason, because we are creating Forms all over the place and the thumbnail view forms aren't special. > (a taskbarThumbnail is deleted before the next one is shown...) > > > > Best regards, > > Henrik > > > > > > > > > > >
