05-07-2008
consumption memory
Hi,
I have a problem with memory on AIX 5.3. On this server, we have JDE Edwards (ERP) and Oracle Database (9.2.0.7.0).
We have 4 Gb for physical memory and 3 Gb for paging space.
When I stop all services (JDE, Oracle and all other services), the physical memory is not free (4 Gb)
svmon -G
size inuse free pin virtual
memory 1048576 1033596 14980 153224 404179
pg space 786432 184887
Memory is never freed even if process is finished
When I reboot the server and start all services without users and so without transactions, the memory is 1 Gb.
svmon -G
size inuse free pin virtual
memory 1048576 269172 779404 97321 216993
pg space 786432 1041
Do you have a similary case ?
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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)