Iwan Aucamp wrote:
Hi
I have observed something which looks like a memory leak in an
application - pmap shows heap size growing at a considerable rate.
I have tried to track down the leak using several tools which
identifies memory leaks - and even wrote one myself - none of these
found anything:
- Libumem
- Valgrind
(on linux since the application works on linux also - but runs on
solaris in production)
- Malloc interposer which keeps account of allocated memory and
prints out summary file based on stack traces which lead to malloc.
The application in question is a multithreaded (50 worker threads)
application which quite heavily relies on malloc and does not really
try to prevent heap fragmentation.
My question is: could severe heap fragmentation leave heap space
unusable and thus create something which appears to be a memory leak ?
I don't think so -- at least not with libumem. With other memory
management libraries this could happen.
- Garrett
Regards
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