Suppose I have a main() function with only one malloc statement allocating say some 1 gb memory. Also say my system has 1 gb of ram.
The program above exits without freeing the memory.
In this case will the 1 gb of heap memory be returned to system on above process termination or has the heap memory permanently leaked and will be available only on system reboot?
I mean if say we start some another process or say the same process again then will they be able to get the 1 gb if heap again?
Last edited by rupeshkp728; 10-25-2012 at 12:49 PM..
Reason: code syntax
Hi!! Experts,
Any ideas how to check for the memory leaks in a process during performance testing?? I dont use purify.. Any way of finding it out using default S/W in HP UX-11
Can U gimme pointers to site having good scripts/tutorials on performance testing??
Thanx in Advance..
:) (3 Replies)
Hi folks,
We are using following listed configurations for a particular application.
HP-UX 11i
Sun Java 2 SDK Standard Edition 1.4.1 (version shipped with WebLogic 8)
Oracle 9i Release 2 (Oracle 9.2.0)
BEA WebLogic Server 8.1 SP3
It seems a memory leak when we use above configurations.... (1 Reply)
hi, i am a c++ programmer working on linux(redhat linux8.0) environment, i need to find out the memory leaks, so far i didn't used any tools, so what are the tools are available, and whic one is good to use. plz provide with a small example. (1 Reply)
Hi Unix lovers,
I am facing a strange problem about memory leak. One component of our product show memory leak at customer's end but not in development environment. The memory used by the exe goes on increasing at customer end but not in dev.
customer has same m/c(HP unix 11i) , the same... (1 Reply)
Hi,
Im working on Solaris 9 on SPARC-32 bit running on an Ultra-80, and I have to find out the following:-
1. Total Physical Memory in the system(total RAM).
2. Available Physical Memory(i.e. RAM Usage)
3. Total (Logical) Memory in the system
4. Available (Logical) Memory.
I know... (4 Replies)
Hi all,
I have written a small code just to invoke main and return immediately. When built with libpthread on AIX box, valgrind throws lots of memory leak errors. But when built without libpthread, no issues at all.
Here is the sample run for your look. Any idea where I might be going wrong?... (3 Replies)
Hello!
I've been struggling for not few hours with memory leaks on this
machine. I'm running linux 2.6.32-5-686, and the problem is as follows:
Some months ago, I have compiled kernel 2.6.33-2-686 without any issues
in this same machine. This week I have tried compiling GNUzilla Icecat
and... (23 Replies)
Hi Experts,
Our servers running Solaris 10 with SAP Application. The memory utilization always >90%, but the process on SAP is too less even nothing.
Why memory utilization on solaris always looks high?
I have statement about memory on solaris, is this true:
Memory in solaris is used for... (4 Replies)
Discussion started by: edydsuranta
4 Replies
LEARN ABOUT DEBIAN
tau_track_memory_headroom
TAU_TRACK_MEMORY_HEA(3) TAU Instrumentation API TAU_TRACK_MEMORY_HEA(3)NAME
TAU_TRACK_MEMORY_HEADROOM - Track the headroom (amount of memory for a process to grow) by periodically interrupting the program
SYNOPSIS
C/C++:
TAU_TRACK_MEMORY_HEADROOM(void);
Fortran:
TAU_TRACK_MEMORY_HEADROOM(void);
DESCRIPTION
Tracks the amount of memory available for the process before it runs out of free memory on the heap. This call sets up a signal handler
that is invoked every 10 seconds by an interrupt (this interval may be altered by using the TAU_SET_INTERRUPT_INTERVAL call). Inside the
interrupt handler, TAU evaluates how much memory it can allocate and associates it with the callstack using the TAU context events (See
TAU_REGISTER_CONTEXT_EVENT(3)). The user can vary the size of the callstack by setting the environment variable TAU_CALLPATH_DEPTH (default
is 2). This call is useful on machines like IBM BG/L where no virtual memory (or paging using the swap space) is present. The amount of
heap memory available to the program is limited by the amount of available physical memory. TAU executes a series of malloc calls with a
granularity of 1MB and determines the amount of memory available for the program to grow.
EXAMPLE
C/C++ :
TAU_TRACK_MEMORY_HEADROOM();
Fortran :
call TAU_TRACK_MEMORY_HEADROOM()
SEE ALSO TAU_TRACK_MEMORY(3), TAU_SET_INTERRUPT_INTERVAL(3), TAU_ENABLE_TRACKING_MEMORY_HEADROOM(3), TAU_DISABLE_TRACKING_MEMORY_HEADROOM(3),
TAU_TRACK_MEMORY_HEADROOM_HERE(3)
08/31/2005 TAU_TRACK_MEMORY_HEA(3)