topic Re: Memory Leakage in Operating System - HP-UX

Memory Leakage

Indrajit_1 — Thu, 04 May 2006 13:58:08 GMT

Hi All;

How to prevent memory leakage? it seems Memory utilization has had a slowly increasing trend (about 1.4%) for the past couple of months. need help

Cheers
indrajit

Re: Memory Leakage

Kent Ostby — Thu, 04 May 2006 14:00:53 GMT

What OS are you on and where are you seeing the leaks?

What patches do you have installed on your system?

Re: Memory Leakage

Torsten. — Thu, 04 May 2006 14:03:59 GMT

Memory leakage could be a result of a bad programming style. If you allocate space for your variables and arrays and don't free the space after use in your program, the memory will get "leak".

In former times when your word processor and your text fits on a floppy-disk, the programs were really memory optimized. Most of the current programs are different.
;-)

Re: Memory Leakage

James R. Ferguson — Thu, 04 May 2006 14:10:24 GMT

Hi:

It is not unusual for a programs' memory footprint to grow over time, since the memory it uses isn't released to the system until the process terminates.

True memory leaks are code bugs. A program that 'malloc's memory but fails to 'free' it when it is no longer needed looses track of the memory it has requested and is said to "leak".

Regards!

...JRF...

Re: Memory Leakage

Laurent Laperrousaz — Fri, 05 May 2006 02:05:56 GMT

there are some tools to track memory leakage, one of them is valgrind (only on Linux) see http://valgrind.org/
for HP-UX you can use Rational Purify:
http://www-306.ibm.com/software/awdtools/purifyplus/

Re: Memory Leakage

Indrajit_1 — Fri, 05 May 2006 10:00:09 GMT

Hi All;

Thanks all of you.

Cheers
Indrajit Roy