Type memory leak

Blitz3D Forums/Blitz3D Programming/Type memory leak

MusicianKool

(Posted 2011) [#1]

So i have a program that shouldn't grow in size, once run. But it seems that, at least under win7 home prem, there is a memory leak when deleting and creating types. windows task manager will show the program memory continues to grow without end. I'm running blitzcc under winxp mode, not sure if that is the cause.


Type deletethis
	Field a
End Type

While Not KeyHit(1)
	Local t.deletethis = New deletethis
	t\a = 1
	Delete t
Wend

Yasha

(Posted 2011) [#2]

Observations:

-- The program as supplied uses only constant memory on my system (Windows XP SP3) when running in release mode.

-- In debug mode, the memory usage does rise slowly in line with your results.

-- RuntimeStats, inserted at the end of the loop, claims that only one unreleased object exists, so in theory that space should be being reclaimed.

Assuming this isn't some kind of intentional debug mode behaviour (...being activated by Windows 7...?), this looks like it might be a legitimate bug for Win7 users.

Last edited 2011

RGF	(Posted 2011) [#3]

I found similar problems today while debugging... As I'm making extensive use of types (new... delete) memory usage is rising, slowly but constantly

Has anyone else experienced this?

MusicianKool

(Posted 2011) [#4]

Yasha

I get the same results with RuntimeStats. And also RuntimeStats is a fix for the leak (release mode) ! I just hope there is no slowdown because it is in there.