Memory leaks on navigation

[branislavjuhas]

Which version of the app?

WinUI 3 Gallery

Description

Memory used by application is constantly increasing reaching values 8 times the initial memory required when navigaing. To reproduce this bug, click through the elements in navigation pane (navigate through different pages a lot of times).

Screenshots

Windows version

Windows 11 22H2 (22621)

Additional context

No response

[marcelwgn]

I'm inclined to say that there isn't actually a memory leak. While the consumption increases, it also decreases. C++/WinRT seems to quite slow with releasing objects it created, however if you create memory pressure the memory does get released. I used testlimit64.exe -d 16024 -c 1 to increase memory usage on my machine and the WinUI Gallery jumped from 500MB in usage to 75MB.

[marcelwgn]

@bpulliam What are your thoughts on this?

[ranjeshj]

@chingucoding @BrancheyJuhas this is by design. The garbage collector will not cleanup if there is plenty of memory to work with. That does not mean the app is leaking. You can force a GC collect or put memory pressure to force GC to run which works as @chingucoding noticed above. If you see a monotonous increase without ever going back down, then there is likely a leak.