Thank you jhon..i have checked using Valgrind and it is not showing any memory leaks. So I was checking the memory usage using "top". I will check using ur suggestion. Thank you verymuch.
-----Original Message----- From: jcup...@gmail.com [mailto:jcup...@gmail.com] Sent: Tuesday, October 19, 2010 2:43 PM To: Vishak V. Kurup Cc: gtk-app-devel-list@gnome.org Subject: Re: Memory management in gtk On 19 October 2010 06:22, Vishak V. Kurup <vishak.ku...@nestgroup.net> wrote: > I am having a small problem related to GTK. My application is having > around 15 windows. When I start my application and check the memory > usage using "top" utility it shows around 19MB. When a new window is > created it may increase upto 22 MB (varies each time). And after I > destroy the new window my memory is not getting reduced. Could anyone > please tell me why memory usage is not decreased even after I destroy > widget. top is not the best way to see memory use of a program, or to check for leaks. When a program starts, the system hands over a large chunk of ram to the memory library. This library then hands out the memory to the program in small bits as the program asks for it. If the chunk is exhausted, the library asks for more memory from the OS. When memory is freed, the memory library does not return it to the host operating system (with certain strange exceptions), instead it keeps it around for reuse. As a result, you will (almost) never see the memuse fall, as reported by top, for any program. To check for leaks, you need to use a special tool. In my opinion, the most useful under Linux is valgrind. Run it with something like: export G_DEBUG=gc-friendly This makes Glib clear certain memory areas after using them, too. export G_SLICE=always-malloc This completely disables the magazine and slab allocator in Glib, and makes it use plain malloc()/free() instead. valgrind --leak-check=yes \ myprog ... > myprog-vg.log 2>&1 You will get some false positives. I have a suppressions file here: http://www.vips.ecs.soton.ac.uk/development/nip2.supp Which hides all the false positives from the gtk stack. John ***** Confidentiality Statement/Disclaimer ***** This message and any attachments is intended for the sole use of the intended recipient. It may contain confidential information. Any unauthorized use, dissemination or modification is strictly prohibited. If you are not the intended recipient, please notify the sender immediately then delete it from all your systems, and do not copy, use or print. Internet communications are not secure and it is the responsibility of the recipient to make sure that it is virus/malicious code exempt. The company/sender cannot be responsible for any unauthorized alterations or modifications made to the contents. If you require any form of confirmation of the contents, please contact the company/sender. The company/sender is not liable for any errors or omissions in the content of this message. _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list