Miklos,
We are also around dynalloc from C/C++, but
You are saying 17000 pages , but the used storage also high ?
(RPTSTG(ON))
So is it a reall a memory leak (HEAPC(ON,0,0,20)) or just a high real
storage usage ?
The LE runtime HEAPOOL(ALIGN) can make big differences .
Well, maybe I'm currently a little bit dumb, but where is the
difference? When my Prog starts, SDSF reports something around 1700 used
pages (ehh, a page is 4K, right?).
After some time, it reports (for example today) 15T pages (I assume
T=thousand). The prog does a DYNALLOC, OPEN, READ/WRITE, CLOSE, DEALLOC.
So somehwere is a memory leak. The last days I tried to find it using
different techniques. I used a wrapper around malloc(), calloc(),
realloc() and free() to track my own memory allocations. Result: No
leak! Nearly everything I allocate gets freed too.
I've also used the Heap-Manager "CEL4MCHK"... again: no leak.
So... Until now I can be sure that I've no obvious memory leak in my
application. Now I assume something that is special to the z/OS
Envoronment makes my application use that much memory (the application
runs also on Linux, AIX, SunOS and Windows - no high memory usage is
seen on these platforms).
Just a few minutes ago I've captured a SVC Dump of my prog - since I've
never done things with IPCS this brings me not any further. I'll have to
get familar with IPCS first.
I also cancelled the prog and generated a dump - the dump has been
catched by the IBM Application Fault Analyzer and I'll throw an eye on
the analysis later. What I've seen so far is a error message:
<snip>
*ERROR* The left node address 1E222AD8 is larger than the parent node
address 1E222098
</snip>
whatever IBM tries to tell me with this left-right stuff ;-> I'll
consult the manual later.... Maybe I'm somehow irritating the heap
manager....
Bye,
Michael
--
Yours sincerely
Michael Knigge
Development
S.E.T. Software GmbH
Lister Straße 15
30163 Hannover
GERMANY
Tel. +49 511/3 97 80-23
Fax +49 511/3 97 80-65
michael.kni...@set-software.de
Commercial Registry: HRB52778 Local Court Hannover
Chief Executive Officer: Till Dammermann, Dr. Bernd Huber
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