Dynamic memory release

[linuxdev]

I have already done that (I have done a delete on the pointer in the Hash before removing the key), but my app shows a constant increase in the VIRTUAL MEMORY (using pmap), only while handling the data related to QHash<int, pointer>.

I suspect only the pointer in QHash, pointing to QVector ....

I am running 'top' command on the exe, at regular intervals and its showing a constant increase in Virtual Memory and resident memory. (Specifically in the anon Block, i think its Heap and related to Dynamic Memory i am using)

Is there any way i can find out, why this is happening ? or which data in my app is taking memory and not releasing back to the Heap???....

Is there any better way to detect Memory Leak in Qt.
I have used Valgrind, but its at very low level...

[spirit]

put qDebug in all dtors of your object and count number of messages after deleting or put breakpoints in all dtors and trace them or you can use 'valgrind' under Linux.