Unable to consume Process reserved memory

[Aravind]

Unable to consume Process reserved memory
Hi ,
This is a Windows form application which interacts with the unmanaged
C++ codes . In unmanaged c++ code we allocate around 130MB on the heap
for annalysing high resolution images .

Earlier during the processing ee do lot of process on the image and the
memory reaches high at one point of time to 1.2GB , after that we clear
all the memory being used so the memory in the task manager comes to
really low.
Also I am calling CompactHeap function in the c++ to get contigous
memory space.

Then when we read the processed high resolution image (130MB ) it is
going to out of memory exception . At this point I run memory analyser
and analysed the process memory , the reserved memory in the process is
good enough and the free memory in the process is really low . I am
wondering why the system is not taking the memory from the reserved
memory space.

Regards
Aravind.

[Willy Denoyette [MVP]]

PLEASE stop multi-posting, you posted this same question a couple of days
ago to this same NG and now you start re-posting to other NG's as well. I
wonder how you manage to read the answers.

This is what I answered in the CSharp NG.....
What exactly do you mean with "clear the memory" and what exactly you are
looking at in taskman?
I would suggest you take a look at the memory consumption using perfmon,
herewith you can inspect managed heap (CLR memory counters) and non managed
heap memory (process counters).
I would also suggest you read about memory management and GC heap management
in windows application.
Willy.

"Aravind" <ar*************@gmail.com> wrote in message
news:11**********************@g44g2000cwa.googlegr oups.com...

Unable to consume Process reserved memory
Hi ,
This is a Windows form application which interacts with the unmanaged
C++ codes . In unmanaged c++ code we allocate around 130MB on the heap
for annalysing high resolution images .

Earlier during the processing ee do lot of process on the image and the
memory reaches high at one point of time to 1.2GB , after that we clear
all the memory being used so the memory in the task manager comes to
really low.
Also I am calling CompactHeap function in the c++ to get contigous
memory space.

Then when we read the processed high resolution image (130MB ) it is
going to out of memory exception . At this point I run memory analyser
and analysed the process memory , the reserved memory in the process is
good enough and the free memory in the process is really low . I am
wondering why the system is not taking the memory from the reserved
memory space.

Regards
Aravind.

[Aravindakumar Venugopalan]

Willy,
sorry for multi-posting the question.
-Aravind

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